fix: prevent API client provider auto-dispose causing Ref invalidation

API client providers (coreApiClientProvider, tatlockApiClientProvider) now
use keepAlive: true. This fixes "DioException [unknown]: null" errors on
pages like /security/users where ref.read() was used without subscription.

The AuthInterceptor stores a Ref that became invalid when the provider
auto-disposed after a one-time read.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitea/workflows/build.yml

@@ -1,15 +1,27 @@
 name: Build and Push
 
 on:
-  release:
-    types: [published]
+  push:
+    tags:
+      - 'v*'
 
 jobs:
-  build:
+  release:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout
-        uses: actions/checkout@v4
+      - name: Create Gitea Release
+        run: |
+          curl -sf -X POST \
+            -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
+            -H "Content-Type: application/json" \
+            -d '{"tag_name": "${{ github.ref_name }}", "name": "Release ${{ github.ref_name }}", "body": "Automated release for ${{ github.ref_name }}"}' \
+            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/releases"
+
+  build:
+    runs-on: ubuntu-latest
+    needs: release
+    steps:
+      - uses: actions/checkout@v4
 
       - name: Login to Gitea Registry
         uses: docker/login-action@v3

.gitignore

@@ -13,11 +13,12 @@ pubspec.lock
 *.gr.dart
 *.mocks.dart
 
-# Keep version.g.dart - it's generated but should be committed
-# so CI/CD builds have version info without running the generator
-# Other *.g.dart files (from json_serializable, etc.) are ignored
+# All generated *.g.dart files (from json_serializable, riverpod, version_builder)
+# These are regenerated by build_runner during CI/CD builds
 lib/**/*.g.dart
-!lib/version.g.dart
+
+# Generated health.json (regenerated by tool/generate_health_json.dart during build)
+web/health.json
 
 # IDE
 .idea/

AGENTS.md

@@ -22,14 +22,20 @@ This document contains instructions and documentation references for AI assistan
   * Related repos: , `core-api`, `tatlock`, `library-desk`, `scheduler`, `portainer-core`
 
 ### 🐳 Deployment & Infrastructure
+
+**⚠️ IMPORTANT: Service Port Reference**
+| Service | LAN Port | External URL | Notes |
+|---------|----------|--------------|-------|
+| **Core API** | 8083 | `api.schweitz.net` | FastAPI backend for this UI |
+| **Tatlock API** | 8000 | `tatlock.schweitz.net` | Legacy Python API (Ollama proxy) |
+| **Tatlock UI** | 9999 | `home.schweitz.net` | This Flutter app |
+
 * **Full stack documentation**: Available in the `portainer-core` repo
-  * Access: `curl http://localhost:3002/jpmschweitzer/portainer-core/raw/branch/main/CONTAINERS.md`
+  * Access: `curl http://192.168.86.149:3002/jpmschweitzer/portainer-core/raw/branch/main/CONTAINERS.md`
   * Contains: All service ports, URLs, Redis DB allocations, external domains
-* **Tatlock deployment**:
-  * LAN: `http://192.168.86.149:8000`
-  * External: `tatlock.schweitz.net` (behind Authentik SSO)
-  * Redis DBs: 1 (memory), 6 (benchmarks)
-* **Health check**: `curl http://192.168.86.149:8000/health`
+* **Health checks**:
+  * Core API: `curl http://192.168.86.149:8083/health`
+  * Tatlock API: `curl http://192.168.86.149:8000/health`
 
 ### 🛡️ Git Discipline
 * **Commit Messages:** Use the [Conventional Commits](https://www.conventionalcommits.org/) format.
@@ -53,10 +59,8 @@ This project uses version-tag-based CI/CD. Releases trigger automated Docker bui
 3. Commit changes: `git commit -m "chore: release vX.X.X"`
 4. Create git tag: `git tag vX.X.X`
 5. Push with tags: `git push origin master --tags`
-6. Create release in Gitea UI (git.schweitz.net → Releases → New Release)
-   * Select the tag
-   * Add release notes (can copy from CHANGELOG)
-   * **Publish** the release (this triggers CI/CD)
+
+CI/CD auto-triggers when a tag starting with `v` is pushed.
 
 **What happens on release:**
 

CHANGELOG.md

@@ -7,6 +7,206 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.1.11] - 2026-01-04
+
+### Fixed
+- API client providers now use `keepAlive: true` to prevent Ref invalidation
+  - Fixes "DioException [unknown]: null" error on /security/users and other API pages
+  - AuthInterceptor's stored Ref was becoming invalid when provider auto-disposed
+
+## [1.1.10] - 2026-01-04
+
+### Changed
+- Removed page swipe transitions - all navigation is now instant (NoTransitionPage)
+
+## [1.1.9] - 2026-01-04
+
+### Changed
+- Moved health check to `/health` directory - URL is now `/health` instead of `/health.html`
+  - Enables NPM forward auth path exclusion for health endpoint
+
+## [1.1.8] - 2026-01-04
+
+### Changed
+- Dark background (`#1a1a2e`) on web/index.html to prevent white flash during auth redirects
+
+## [1.1.7] - 2026-01-04
+
+### Removed
+- Removed `/callback` route from Flutter router - AuthController handles callback in main() before app starts
+- Removed `_OidcCallbackPage` widget - no visible auth UI needed
+
+## [1.1.6] - 2026-01-04
+
+### Changed
+- **Auth moved to standalone controller** - Handles OIDC completely outside Riverpod
+  - New `AuthController` runs in `main()` before `runApp()` - avoids provider lifecycle issues
+  - Handles callback, token exchange, and /auth/sync before app starts
+  - If auth not ready (redirecting), app doesn't start at all
+  - `AuthProvider` now just loads stored tokens (no async OIDC logic)
+  - Fixes "Cannot use Ref after disposed" errors from autoDispose providers
+
+## [1.1.5] - 2026-01-04
+
+### Fixed
+- Race condition in OIDC callback: AuthProvider.build() was initiating silent OIDC while the callback page was processing, causing PKCE state to be cleared. Now skips silent OIDC when on `/callback` route.
+
+## [1.1.4] - 2026-01-04
+
+### Fixed
+- Silent OIDC fallback: when `prompt=none` fails with `login_required` (no Authentik session), automatically fall back to regular OIDC flow to show login UI
+
+## [1.1.3] - 2026-01-04
+
+### Changed
+- **Web auth uses silent OIDC with JWT Bearer tokens**
+  - Uses `prompt=none` to silently obtain JWT when Authentik session exists (via NPM forward auth)
+  - Flutter sends Bearer token to core-api instead of relying on forward auth cookies
+  - Fixes cross-subdomain cookie issues between home.schweitz.net and api.schweitz.net
+  - Callback now syncs with `/auth/sync` to get user profile and roles from core-api
+  - API interceptor now adds Bearer token on web (previously skipped)
+
+## [1.1.2] - 2026-01-04
+
+### Changed
+- **Web auth simplified**: Skip Flutter OIDC on web - NPM forward auth handles it
+  - NPM authenticates at proxy level before app loads
+  - No more redundant OIDC redirect after NPM auth completes
+  - Fixes "Cannot use Ref after disposed" error from conflicting auth flows
+  - Mobile still uses Flutter OIDC flow
+
+### Added
+- Logout now redirects to Authentik to end SSO session
+  - Clears local tokens AND invalidates Authentik session
+  - Uses OIDC end_session_endpoint from discovery document
+  - Redirects back to app after Authentik logout completes
+
+## [1.1.0] - 2026-01-04
+
+### Changed
+- **Dockerfile rebuild fix**: Added `flutter clean` before build to prevent stale cached artifacts
+  - VERSION build arg added for explicit cache busting
+  - Reordered build steps: clean → pub get → build_runner → health.json → flutter build
+  - Ensures deployed app always matches the version in health.json
+
+### Fixed
+- Replaced deprecated `dart:html` with `package:web` in iframe_view_web.dart
+  - Uses `web.HTMLIFrameElement` instead of `html.IFrameElement`
+  - Fixes deprecation warnings for Flutter 3.x web builds
+
+## [1.0.12] - 2026-01-04
+
+### Changed
+- Removed login page - auth now auto-initiates from AppScaffold
+  - No more redirect to /login, just auto-start OIDC if not authenticated
+  - Shows loading screen during auth, error screen on failure with retry
+  - Seamless experience when Authentik session exists
+
+### Removed
+- Removed /login route and _LoginPage widget
+
+## [1.0.11] - 2026-01-04
+
+### Changed
+- Web auth now extracts user info directly from JWT instead of syncing with core-api
+  - Eliminates CORS preflight issues with /auth/sync endpoint
+  - Decodes JWT claims (name, email, groups) client-side
+  - Bearer token will be used for API authentication
+
+## [1.0.10] - 2026-01-04
+
+### Fixed
+- Fixed OIDC callback route being redirected to login before processing
+  - Moved callback route exception check BEFORE the auth redirect check in router
+  - This was preventing token exchange from ever happening
+- Added favicon.ico to web root for proper browser tab icon display
+
+## [1.0.9] - 2026-01-04
+
+### Fixed
+- Fixed OIDC callback Riverpod state modification error
+  - Deferred callback processing to `addPostFrameCallback` to avoid modifying state during widget build
+
+## [1.0.8] - 2026-01-04
+
+### Changed
+- Switched from hash-based URLs (`/#/login`) to path-based URLs (`/login`)
+  - Required for OIDC callback to work correctly
+  - Uses conditional import to avoid breaking mobile/desktop builds
+
+## [1.0.7] - 2026-01-04
+
+### Fixed
+- Fixed OIDC PKCE state loss across browser redirect
+  - Code verifier and state now persist in sessionStorage instead of memory
+  - Prevents "No code verifier" error after Authentik redirect
+
+## [1.0.6] - 2026-01-04
+
+### Fixed
+- Fixed version generation in CI/CD builds
+- Removed generated files (version.g.dart, health.json) from git tracking
+- These files are now regenerated from pubspec.yaml during Docker build
+
+## [1.0.5] - 2026-01-04
+
+### Changed
+- **Web authentication now uses OIDC** instead of NPM forward auth
+  - Added `OidcServiceWeb` for browser redirect-based Authorization Code flow with PKCE
+  - Added `/callback` route to handle Authentik redirect after login
+  - Login page now shows "Sign in with Authentik" button for both web and mobile
+  - Tokens stored in SharedPreferences and synced with core-api via `/auth/sync`
+- Added web utility functions (`web_utils.dart`) with conditional imports for non-web platforms
+- Added `crypto` and `web` packages for PKCE SHA-256 and browser API access
+
+### Fixed
+- Removed cross-origin cookie dependency that caused authentication failures on web
+
+## [1.0.4] - 2026-01-03
+
+### Added
+- `health.json` generated at build time with app version info
+- `health.html` now displays version, title, and status from health.json
+
+## [1.0.3] - 2026-01-03
+
+### Fixed
+- Fixed auth endpoint path: `/auth/me` → `/auth/users/me`
+
+## [1.0.2] - 2026-01-03
+
+### Fixed
+- Production Docker build now uses correct API URLs
+  - Added `--dart-define` flags for `CORE_API_URL` and `TATLOCK_API_URL`
+  - This enables `requiresAuth=true` so authentication is actually triggered
+- Updated AGENTS.md with clear service port reference table
+
+## [1.0.1] - 2026-01-03
+
+### Fixed
+- Web authentication now works correctly with NPM forward auth
+  - Dio client sends cookies with requests via `withCredentials: true`
+  - Added platform-specific adapters (native vs web) for proper cookie handling
+
+## [1.0.0] - 2026-01-03
+
+### Added
+- **Authentication System** - Dual-flow auth supporting web (NPM forward auth) and mobile (OIDC)
+  - `AuthState` model with roles, permissions, and user preferences
+  - `AuthProvider` with automatic web session detection via `/auth/me`
+  - Permission system with Domain/Action enums and hierarchical access levels
+  - `PermissionGate` and `AdminGate` widgets for UI permission checks
+  - `Role` model with `{domain}.{category}:{action}` format parsing
+  - Route guards redirect unauthenticated users to login page
+- Login page with Authentik OAuth redirect
+- Mobile auth platform configuration (iOS URL schemes, Android AppAuth)
+- Comprehensive auth test suite (60 unit tests)
+
+### Changed
+- API interceptor skips Bearer tokens on web (uses cookies via NPM forward auth)
+- Router integrates auth state for protected route access
+- **First stable release** - Core functionality complete for home lab dashboard
+
 ## [0.3.3] - 2026-01-03
 
 ### Added

Dockerfile

@@ -3,20 +3,34 @@ FROM ghcr.io/cirruslabs/flutter:stable AS builder
 
 WORKDIR /app
 
-# Copy dependency files first for better caching
-COPY pubspec.yaml ./
+# VERSION arg busts cache when version changes in pubspec.yaml
+# Extract version: docker build --build-arg VERSION=$(grep '^version:' pubspec.yaml | cut -d' ' -f2) .
+ARG VERSION=0.0.0
+RUN echo "Building version: $VERSION"
 
-# Get dependencies (generates pubspec.lock)
+# Copy dependency files first for better caching
+COPY pubspec.yaml pubspec.lock* ./
+
+# Get dependencies
 RUN flutter pub get
 
 # Copy the rest of the application
 COPY . .
 
-# Generate code with build_runner
+# Clean any cached build artifacts to ensure fresh build
+RUN flutter clean && flutter pub get
+
+# Generate code with build_runner (after clean for fresh generation)
 RUN dart run build_runner build --delete-conflicting-outputs
 
-# Build for web release
-RUN flutter build web --release
+# Generate health.json with version info
+RUN dart run tool/generate_health_json.dart
+
+# Build for web release with production configuration
+# These URLs enable authentication (requiresAuth = true when URL contains schweitz.net)
+RUN flutter build web --release \
+    --dart-define=CORE_API_URL=https://api.schweitz.net \
+    --dart-define=TATLOCK_API_URL=https://tatlock.schweitz.net
 
 # Stage 2: Serve with nginx
 FROM nginx:alpine

android/app/build.gradle.kts

@@ -24,10 +24,13 @@ android {
         applicationId = "net.schweitz.tatlock_ui"
         // You can update the following values to match your application needs.
         // For more information, see: https://flutter.dev/to/review-gradle-config.
-        minSdk = flutter.minSdkVersion
+        minSdk = 23  // Required for AppAuth
         targetSdk = flutter.targetSdkVersion
         versionCode = flutter.versionCode
         versionName = flutter.versionName
+
+        // flutter_appauth redirect scheme for OIDC callbacks
+        manifestPlaceholders["appAuthRedirectScheme"] = "net.schweitz.tatlock"
     }
 
     buildTypes {

docs/ARCHITECTURE.md

@@ -142,7 +142,7 @@ part 'container_model.freezed.dart';
 part 'container_model.g.dart';
 
 @freezed
-class ContainerModel with _$ContainerModel {
+sealed class ContainerModel with _$ContainerModel {
   const factory ContainerModel({
     required String id,
     required String name,
@@ -464,6 +464,34 @@ Generated files:
 - `*.freezed.dart` - Immutable classes
 - `*.g.dart` - JSON serialization, Riverpod providers
 
+### Freezed 3.x: Required `sealed class`
+
+**Freezed 3.x requires the `sealed` keyword** on all classes with generated mixins. Without it, the generated code will fail to compile with errors about missing concrete implementations.
+
+```dart
+// ✅ Correct - Freezed 3.x
+@freezed
+sealed class UserModel with _$UserModel {
+  const factory UserModel({
+    required String id,
+    required String name,
+  }) = _UserModel;
+
+  factory UserModel.fromJson(Map<String, dynamic> json) =>
+      _$UserModelFromJson(json);
+}
+
+// ❌ Wrong - will fail to compile
+@freezed
+class UserModel with _$UserModel {  // Missing `sealed`
+  const factory UserModel({...}) = _UserModel;
+}
+```
+
+The `sealed` keyword was introduced in Dart 3.0 and allows the generated mixin `_$UserModel` to have abstract members that are implemented by the private `_UserModel` class.
+
+**Always use `sealed class` with `@freezed`** - this applies to all models, entities, and state classes using Freezed.
+
 ## Import Rules
 
 1. Never import from `data/` in `domain/`

ios/Runner/Info.plist

@@ -45,5 +45,18 @@
 	<true/>
 	<key>UIApplicationSupportsIndirectInputEvents</key>
 	<true/>
+	<key>CFBundleURLTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeRole</key>
+			<string>Editor</string>
+			<key>CFBundleURLName</key>
+			<string>net.schweitz.tatlock</string>
+			<key>CFBundleURLSchemes</key>
+			<array>
+				<string>net.schweitz.tatlock</string>
+			</array>
+		</dict>
+	</array>
 </dict>
 </plist>

lib/core/api/api_client.dart

@@ -3,23 +3,29 @@ import 'package:riverpod_annotation/riverpod_annotation.dart';
 import 'package:tatlock_ui/core/api/api_interceptors.dart';
 import 'package:tatlock_ui/core/config/app_config.dart';
 
+import 'api_client_native.dart' if (dart.library.html) 'api_client_web.dart'
+    as platform;
+
 part 'api_client.g.dart';
 
 /// Provides the Dio instance for Core API.
-@riverpod
+///
+/// Uses keepAlive to prevent auto-dispose - the AuthInterceptor stores
+/// a Ref that must remain valid for the lifetime of API requests.
+@Riverpod(keepAlive: true)
 Dio coreApiClient(Ref ref) {
-  final dio = Dio(
-    BaseOptions(
-      baseUrl: AppConfig.coreApiUrl,
-      connectTimeout: const Duration(seconds: 10),
-      receiveTimeout: const Duration(seconds: 30),
-      headers: {
-        'Content-Type': 'application/json',
-        'Accept': 'application/json',
-      },
-    ),
+  final options = BaseOptions(
+    baseUrl: AppConfig.coreApiUrl,
+    connectTimeout: const Duration(seconds: 10),
+    receiveTimeout: const Duration(seconds: 30),
+    headers: {
+      'Content-Type': 'application/json',
+      'Accept': 'application/json',
+    },
   );
 
+  final dio = platform.createDio(options);
+
   dio.interceptors.addAll([
     AuthInterceptor(ref),
     LoggingInterceptor(),
@@ -30,20 +36,23 @@ Dio coreApiClient(Ref ref) {
 }
 
 /// Provides the Dio instance for Tatlock API.
-@riverpod
+///
+/// Uses keepAlive to prevent auto-dispose - the AuthInterceptor stores
+/// a Ref that must remain valid for the lifetime of API requests.
+@Riverpod(keepAlive: true)
 Dio tatlockApiClient(Ref ref) {
-  final dio = Dio(
-    BaseOptions(
-      baseUrl: AppConfig.tatlockApiUrl,
-      connectTimeout: const Duration(seconds: 10),
-      receiveTimeout: const Duration(minutes: 5), // Longer for LLM responses
-      headers: {
-        'Content-Type': 'application/json',
-        'Accept': 'application/json',
-      },
-    ),
+  final options = BaseOptions(
+    baseUrl: AppConfig.tatlockApiUrl,
+    connectTimeout: const Duration(seconds: 10),
+    receiveTimeout: const Duration(minutes: 5), // Longer for LLM responses
+    headers: {
+      'Content-Type': 'application/json',
+      'Accept': 'application/json',
+    },
   );
 
+  final dio = platform.createDio(options);
+
   dio.interceptors.addAll([
     AuthInterceptor(ref),
     LoggingInterceptor(),

lib/core/api/api_client_native.dart

@@ -0,0 +1,6 @@
+import 'package:dio/dio.dart';
+
+/// Create a Dio instance for native platforms (mobile, desktop).
+Dio createDio(BaseOptions options) {
+  return Dio(options);
+}

lib/core/api/api_client_web.dart

@@ -0,0 +1,12 @@
+import 'package:dio/dio.dart';
+import 'package:dio_web_adapter/dio_web_adapter.dart';
+
+/// Create a Dio instance for web platform with credentials support.
+///
+/// Enables `withCredentials` to send cookies with requests, which is
+/// required for NPM forward auth to work correctly.
+Dio createDio(BaseOptions options) {
+  final dio = Dio(options);
+  dio.httpClientAdapter = BrowserHttpClientAdapter(withCredentials: true);
+  return dio;
+}

lib/core/api/api_interceptors.dart

@@ -9,7 +9,8 @@ import 'package:tatlock_ui/core/error/app_exception.dart';
 
 /// Adds authentication token to requests.
 ///
-/// Skipped entirely when [AppConfig.requiresAuth] is false (LAN development).
+/// - **LAN mode**: Skipped entirely (no auth required)
+/// - **Web + Mobile**: Adds Bearer token from OIDC authentication
 class AuthInterceptor extends Interceptor {
   AuthInterceptor(this._ref);
 
@@ -23,6 +24,7 @@ class AuthInterceptor extends Interceptor {
       return;
     }
 
+    // Add Bearer token for all platforms (web + mobile)
     final authState = _ref.read(authProvider);
 
     authState.whenData((auth) {

lib/core/auth/auth_controller.dart

@@ -0,0 +1,288 @@
+import 'dart:convert' show jsonDecode, jsonEncode;
+import 'dart:developer' as developer;
+
+import 'package:dio/dio.dart';
+import 'package:flutter/foundation.dart' show kIsWeb;
+import 'package:shared_preferences/shared_preferences.dart';
+
+import '../config/app_config.dart';
+import 'auth_datasource.dart';
+import 'auth_state.dart';
+import 'oidc_service_web.dart';
+import 'permissions.dart';
+import 'user_preferences.dart';
+import 'web_utils.dart' as web_utils;
+
+/// Standalone auth controller that handles OIDC flow before app starts.
+///
+/// This runs outside of Riverpod to avoid lifecycle issues. Call [initialize]
+/// in main() before runApp(). The controller will:
+/// 1. Handle callback if on /callback route (exchange code, sync, store tokens)
+/// 2. Check for valid stored tokens
+/// 3. Redirect to silent OIDC if no tokens (app won't continue)
+///
+/// Once auth is complete, [AuthProvider] can simply read the stored tokens.
+class AuthController {
+  // Storage keys (same as AuthProvider)
+  static const _accessTokenKey = 'auth_access_token';
+  static const _refreshTokenKey = 'auth_refresh_token';
+  static const _expiresAtKey = 'auth_expires_at';
+  static const _userIdKey = 'auth_user_id';
+  static const _authentikIdKey = 'auth_authentik_id';
+  static const _userNameKey = 'auth_user_name';
+  static const _userEmailKey = 'auth_user_email';
+  static const _avatarUrlKey = 'auth_avatar_url';
+  static const _rolesKey = 'auth_roles';
+  static const _preferencesKey = 'auth_preferences';
+
+  /// Initialize auth before app starts.
+  ///
+  /// Returns true if auth is ready (tokens available).
+  /// Returns false if redirecting (app should not continue).
+  /// Throws on error.
+  static Future<bool> initialize() async {
+    // Skip auth entirely for LAN mode
+    if (!AppConfig.requiresAuth) {
+      developer.log('Auth not required (LAN mode)', name: 'auth_controller');
+      return true;
+    }
+
+    // Only handle web auth here - mobile uses different flow
+    if (!kIsWeb) {
+      developer.log('Non-web platform, skipping controller init', name: 'auth_controller');
+      return true;
+    }
+
+    final currentUrl = web_utils.getCurrentUrl();
+    developer.log('Auth controller init, URL: $currentUrl', name: 'auth_controller');
+
+    // Check if we're on the callback route
+    if (currentUrl.contains('/callback')) {
+      return _handleCallback(currentUrl);
+    }
+
+    // Check for valid stored tokens
+    final prefs = await SharedPreferences.getInstance();
+    final accessToken = prefs.getString(_accessTokenKey);
+    if (accessToken != null) {
+      final expiresAtMs = prefs.getInt(_expiresAtKey);
+      final expiresAt = expiresAtMs != null
+          ? DateTime.fromMillisecondsSinceEpoch(expiresAtMs)
+          : null;
+
+      if (expiresAt == null || expiresAt.isAfter(DateTime.now())) {
+        developer.log('Valid tokens found', name: 'auth_controller');
+        return true; // Auth ready
+      }
+      developer.log('Tokens expired', name: 'auth_controller');
+    }
+
+    // No valid tokens - initiate silent OIDC
+    developer.log('No valid tokens, starting silent OIDC', name: 'auth_controller');
+    await _initiateSilentOidc();
+    return false; // Redirecting, app should not continue
+  }
+
+  /// Handle the OIDC callback.
+  static Future<bool> _handleCallback(String url) async {
+    final uri = Uri.parse(url);
+    final code = uri.queryParameters['code'];
+    final state = uri.queryParameters['state'];
+    final error = uri.queryParameters['error'];
+
+    developer.log('Handling callback: code=${code != null}, error=$error', name: 'auth_controller');
+
+    // Handle errors
+    if (error != null) {
+      if (error == 'login_required') {
+        // Silent auth failed - no session, start regular OIDC
+        developer.log('Silent auth failed (login_required), starting regular OIDC', name: 'auth_controller');
+        await _initiateRegularOidc();
+        return false;
+      }
+      throw Exception('Auth error: $error - ${uri.queryParameters['error_description']}');
+    }
+
+    if (code == null || state == null) {
+      throw Exception('Invalid callback - missing code or state');
+    }
+
+    // Exchange code for tokens
+    developer.log('Exchanging code for tokens', name: 'auth_controller');
+    final oidcService = OidcServiceWeb();
+    final tokens = await oidcService.exchangeCode(code, state);
+
+    // Sync with core-api
+    developer.log('Syncing with core-api', name: 'auth_controller');
+    final dio = Dio(BaseOptions(
+      baseUrl: AppConfig.coreApiUrl,
+      headers: {
+        'Content-Type': 'application/json',
+        'Accept': 'application/json',
+      },
+    ));
+    final authDatasource = AuthDatasource(dio);
+    final syncResponse = await authDatasource.syncUser(tokens.accessToken);
+
+    developer.log('Synced user: ${syncResponse.name}', name: 'auth_controller');
+
+    // Store credentials
+    await _storeAuth(
+      accessToken: tokens.accessToken,
+      refreshToken: tokens.refreshToken,
+      expiresAt: tokens.expiresAt,
+      userId: syncResponse.userId,
+      authentikId: syncResponse.authentikId,
+      userName: syncResponse.name,
+      userEmail: syncResponse.email,
+      avatarUrl: syncResponse.avatarUrl,
+      roles: syncResponse.roles,
+      preferences: syncResponse.preferences,
+    );
+
+    // Redirect to home (removes callback params from URL)
+    developer.log('Auth complete, redirecting to home', name: 'auth_controller');
+    web_utils.redirectTo('/');
+    return false; // Redirecting
+  }
+
+  /// Initiate silent OIDC (prompt=none).
+  static Future<void> _initiateSilentOidc() async {
+    final oidcService = OidcServiceWeb();
+    final authUrl = await oidcService.getAuthorizationUrl(silent: true);
+    developer.log('Redirecting to silent OIDC', name: 'auth_controller');
+    web_utils.redirectTo(authUrl);
+  }
+
+  /// Initiate regular OIDC (shows login UI).
+  static Future<void> _initiateRegularOidc() async {
+    final oidcService = OidcServiceWeb();
+    final authUrl = await oidcService.getAuthorizationUrl(silent: false);
+    developer.log('Redirecting to regular OIDC', name: 'auth_controller');
+    web_utils.redirectTo(authUrl);
+  }
+
+  /// Store auth data.
+  static Future<void> _storeAuth({
+    required String accessToken,
+    String? refreshToken,
+    DateTime? expiresAt,
+    String? userId,
+    String? authentikId,
+    String? userName,
+    String? userEmail,
+    String? avatarUrl,
+    List<Role>? roles,
+    UserPreferences? preferences,
+  }) async {
+    final prefs = await SharedPreferences.getInstance();
+
+    await prefs.setString(_accessTokenKey, accessToken);
+    if (refreshToken != null) {
+      await prefs.setString(_refreshTokenKey, refreshToken);
+    }
+    if (expiresAt != null) {
+      await prefs.setInt(_expiresAtKey, expiresAt.millisecondsSinceEpoch);
+    }
+    if (userId != null) await prefs.setString(_userIdKey, userId);
+    if (authentikId != null) await prefs.setString(_authentikIdKey, authentikId);
+    if (userName != null) await prefs.setString(_userNameKey, userName);
+    if (userEmail != null) await prefs.setString(_userEmailKey, userEmail);
+    if (avatarUrl != null) await prefs.setString(_avatarUrlKey, avatarUrl);
+
+    if (roles != null) {
+      final rolesJson = jsonEncode(roles.map((r) => {
+        'id': r.id,
+        'name': r.name,
+        'domain': r.domain.value,
+        'category': r.category,
+        'action': r.action.name,
+      }).toList());
+      await prefs.setString(_rolesKey, rolesJson);
+    }
+
+    if (preferences != null) {
+      await prefs.setString(_preferencesKey, jsonEncode(preferences.toJson()));
+    }
+  }
+
+  /// Load stored auth state (for AuthProvider to use).
+  static Future<AuthState> loadStoredAuth() async {
+    try {
+      final prefs = await SharedPreferences.getInstance();
+
+      final accessToken = prefs.getString(_accessTokenKey);
+      if (accessToken == null) {
+        return const AuthState();
+      }
+
+      final expiresAtMs = prefs.getInt(_expiresAtKey);
+      final expiresAt = expiresAtMs != null
+          ? DateTime.fromMillisecondsSinceEpoch(expiresAtMs)
+          : null;
+
+      final rolesJson = prefs.getString(_rolesKey);
+      final roles = rolesJson != null ? _parseRoles(rolesJson) : <Role>[];
+
+      final prefsJson = prefs.getString(_preferencesKey);
+      final preferences = prefsJson != null
+          ? UserPreferences.fromJson(jsonDecode(prefsJson) as Map<String, dynamic>)
+          : null;
+
+      return AuthState(
+        isAuthenticated: true,
+        accessToken: accessToken,
+        refreshToken: prefs.getString(_refreshTokenKey),
+        expiresAt: expiresAt,
+        userId: prefs.getString(_userIdKey),
+        authentikId: prefs.getString(_authentikIdKey),
+        userName: prefs.getString(_userNameKey),
+        userEmail: prefs.getString(_userEmailKey),
+        avatarUrl: prefs.getString(_avatarUrlKey),
+        roles: roles,
+        preferences: preferences,
+      );
+    } catch (e) {
+      developer.log('Failed to load stored auth: $e', name: 'auth_controller');
+      return const AuthState();
+    }
+  }
+
+  static List<Role> _parseRoles(String json) {
+    try {
+      final list = jsonDecode(json) as List<dynamic>;
+      return list.map((item) {
+        final map = item as Map<String, dynamic>;
+        final domain = Domain.fromString(map['domain'] as String);
+        final action = Action.fromString(map['action'] as String);
+
+        if (domain == null || action == null) return null;
+
+        return Role(
+          id: map['id'] as String,
+          name: map['name'] as String,
+          domain: domain,
+          category: map['category'] as String? ?? 'general',
+          action: action,
+        );
+      }).whereType<Role>().toList();
+    } catch (e) {
+      return [];
+    }
+  }
+
+  /// Clear stored auth (for logout).
+  static Future<void> clearAuth() async {
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.remove(_accessTokenKey);
+    await prefs.remove(_refreshTokenKey);
+    await prefs.remove(_expiresAtKey);
+    await prefs.remove(_userIdKey);
+    await prefs.remove(_authentikIdKey);
+    await prefs.remove(_userNameKey);
+    await prefs.remove(_userEmailKey);
+    await prefs.remove(_avatarUrlKey);
+    await prefs.remove(_rolesKey);
+    await prefs.remove(_preferencesKey);
+  }
+}

lib/core/auth/auth_datasource.dart

@@ -0,0 +1,133 @@
+import 'package:dio/dio.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+import '../api/api_client.dart';
+import 'permissions.dart';
+import 'user_preferences.dart';
+
+part 'auth_datasource.g.dart';
+
+/// Response from POST /auth/sync endpoint.
+class AuthSyncResponse {
+  const AuthSyncResponse({
+    required this.userId,
+    required this.authentikId,
+    required this.email,
+    required this.name,
+    this.avatarUrl,
+    required this.roles,
+    required this.preferences,
+    required this.isNewUser,
+  });
+
+  final String userId;
+  final String authentikId;
+  final String email;
+  final String name;
+  final String? avatarUrl;
+  final List<Role> roles;
+  final UserPreferences preferences;
+  final bool isNewUser;
+
+  factory AuthSyncResponse.fromJson(Map<String, dynamic> json) {
+    final user = json['user'] as Map<String, dynamic>;
+    final rolesJson = json['roles'] as List<dynamic>;
+    final prefsJson = json['preferences'] as Map<String, dynamic>;
+
+    return AuthSyncResponse(
+      userId: user['id'] as String,
+      authentikId: user['authentik_id'] as String,
+      email: user['email'] as String,
+      name: user['name'] as String,
+      avatarUrl: user['avatar_url'] as String?,
+      roles: rolesJson.map((r) => _parseRole(r as Map<String, dynamic>)).toList(),
+      preferences: UserPreferences.fromJson(prefsJson),
+      isNewUser: json['is_new_user'] as bool,
+    );
+  }
+}
+
+/// Parse a role from API JSON.
+Role _parseRole(Map<String, dynamic> json) {
+  final name = json['name'] as String;
+  final domainStr = json['domain'] as String;
+  final category = json['category'] as String? ?? 'general';
+  final actionStr = json['action'] as String;
+
+  final domain = Domain.fromString(domainStr);
+  final action = Action.fromString(actionStr);
+
+  if (domain == null || action == null) {
+    // Return a placeholder role for unknown domains/actions
+    return Role(
+      id: json['id'] as String,
+      name: name,
+      domain: Domain.admin, // Fallback
+      category: category,
+      action: Action.viewer, // Fallback - least privilege
+    );
+  }
+
+  return Role(
+    id: json['id'] as String,
+    name: name,
+    domain: domain,
+    category: category,
+    action: action,
+  );
+}
+
+/// Datasource for auth API endpoints.
+class AuthDatasource {
+  AuthDatasource(this._dio);
+
+  final Dio _dio;
+
+  /// Sync user with core-api after OIDC authentication.
+  ///
+  /// Sends the OIDC access token to core-api, which validates it with Authentik
+  /// and returns the user profile, roles, and preferences.
+  Future<AuthSyncResponse> syncUser(String accessToken) async {
+    final response = await _dio.post<Map<String, dynamic>>(
+      '/auth/sync',
+      data: {'access_token': accessToken},
+    );
+
+    return AuthSyncResponse.fromJson(response.data!);
+  }
+
+  /// Get current user profile via NPM forward auth.
+  ///
+  /// This endpoint reads X-authentik-* headers set by NPM forward auth.
+  /// Returns user profile if authenticated via the proxy.
+  /// Throws 401 if not authenticated or accessing directly.
+  Future<AuthSyncResponse> getCurrentUser() async {
+    final response = await _dio.get<Map<String, dynamic>>('/auth/users/me');
+    return AuthSyncResponse.fromJson(response.data!);
+  }
+
+  /// Update user preferences.
+  Future<UserPreferences> updatePreferences({
+    String? theme,
+    String? defaultRoom,
+    Map<String, dynamic>? preferencesJson,
+  }) async {
+    final data = <String, dynamic>{};
+    if (theme != null) data['theme'] = theme;
+    if (defaultRoom != null) data['default_room'] = defaultRoom;
+    if (preferencesJson != null) data['preferences_json'] = preferencesJson;
+
+    final response = await _dio.patch<Map<String, dynamic>>(
+      '/auth/users/me/preferences',
+      data: data,
+    );
+
+    return UserPreferences.fromJson(response.data!);
+  }
+}
+
+/// Provider for the auth datasource.
+@riverpod
+AuthDatasource authDatasource(Ref ref) {
+  return AuthDatasource(ref.watch(coreApiClientProvider));
+}

lib/core/auth/auth_provider.dart

@@ -1,28 +1,48 @@
+import 'dart:convert' show jsonDecode, jsonEncode;
 import 'dart:developer' as developer;
 
+import 'package:flutter/foundation.dart' show kIsWeb;
 import 'package:riverpod_annotation/riverpod_annotation.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
+import '../config/app_config.dart';
+import 'auth_datasource.dart';
 import 'auth_state.dart';
+import 'oidc_service.dart';
+import 'oidc_service_web.dart';
+import 'permissions.dart';
+import 'user_preferences.dart';
+import 'web_utils.dart' as web_utils;
 
 part 'auth_provider.g.dart';
 
 /// Provides authentication state and operations.
 ///
-/// Note: Full OIDC implementation with flutter_appauth requires
-/// native platform configuration. For now, this provides the
-/// state management infrastructure.
+/// Supports OIDC Authorization Code flow with PKCE on all platforms:
+/// - **Web**: Browser redirect to Authentik, callback via /callback route
+/// - **Mobile**: flutter_appauth with custom URL scheme
+///
+/// After OIDC authentication, syncs with core-api via POST /auth/sync
+/// to get user profile, roles, and preferences.
 @riverpod
 class AuthNotifier extends _$AuthNotifier {
+  // Storage keys
   static const _accessTokenKey = 'auth_access_token';
   static const _refreshTokenKey = 'auth_refresh_token';
   static const _expiresAtKey = 'auth_expires_at';
   static const _userIdKey = 'auth_user_id';
+  static const _authentikIdKey = 'auth_authentik_id';
   static const _userNameKey = 'auth_user_name';
   static const _userEmailKey = 'auth_user_email';
+  static const _avatarUrlKey = 'auth_avatar_url';
+  static const _rolesKey = 'auth_roles';
+  static const _preferencesKey = 'auth_preferences';
 
   @override
   Future<AuthState> build() async {
+    // AuthController.initialize() in main() handles OIDC flow before app starts.
+    // By the time we get here, tokens are already stored (or we're in LAN mode).
+    // Just load the stored auth state.
     return _loadStoredAuth();
   }
 
@@ -40,17 +60,36 @@ class AuthNotifier extends _$AuthNotifier {
           ? DateTime.fromMillisecondsSinceEpoch(expiresAtMs)
           : null;
 
+      // Load roles from JSON
+      final rolesJson = prefs.getString(_rolesKey);
+      final roles = rolesJson != null ? _parseRoles(rolesJson) : <Role>[];
+
+      // Load preferences from JSON
+      final prefsJson = prefs.getString(_preferencesKey);
+      final preferences = prefsJson != null
+          ? UserPreferences.fromJson(jsonDecode(prefsJson) as Map<String, dynamic>)
+          : null;
+
       final authState = AuthState(
         isAuthenticated: true,
         accessToken: accessToken,
         refreshToken: prefs.getString(_refreshTokenKey),
         expiresAt: expiresAt,
         userId: prefs.getString(_userIdKey),
+        authentikId: prefs.getString(_authentikIdKey),
         userName: prefs.getString(_userNameKey),
         userEmail: prefs.getString(_userEmailKey),
+        avatarUrl: prefs.getString(_avatarUrlKey),
+        roles: roles,
+        preferences: preferences,
       );
 
-      // Check if token is expired
+      // Check if token is expired - try to refresh
+      if (authState.isTokenExpired && authState.refreshToken != null) {
+        developer.log('Token expired, attempting refresh', name: 'auth');
+        return _tryRefreshToken(authState);
+      }
+
       if (authState.isTokenExpired) {
         developer.log('Stored token expired, clearing auth', name: 'auth');
         await _clearStoredAuth();
@@ -65,29 +104,285 @@ class AuthNotifier extends _$AuthNotifier {
     }
   }
 
-  /// Sign in with OIDC (placeholder for flutter_appauth integration).
+  /// Parse roles from stored JSON.
+  List<Role> _parseRoles(String json) {
+    try {
+      final list = jsonDecode(json) as List<dynamic>;
+      return list.map((item) {
+        final map = item as Map<String, dynamic>;
+        final domain = Domain.fromString(map['domain'] as String);
+        final action = Action.fromString(map['action'] as String);
+
+        if (domain == null || action == null) {
+          return null;
+        }
+
+        return Role(
+          id: map['id'] as String,
+          name: map['name'] as String,
+          domain: domain,
+          category: map['category'] as String? ?? 'general',
+          action: action,
+        );
+      }).whereType<Role>().toList();
+    } catch (e) {
+      developer.log('Failed to parse roles: $e', name: 'auth');
+      return [];
+    }
+  }
+
+  /// Try to refresh the access token.
+  Future<AuthState> _tryRefreshToken(AuthState currentState) async {
+    if (currentState.refreshToken == null) {
+      await _clearStoredAuth();
+      return const AuthState();
+    }
+
+    try {
+      final oidcService = ref.read(oidcServiceProvider);
+      final tokens = await oidcService.refreshToken(currentState.refreshToken!);
+
+      // Update stored tokens
+      final prefs = await SharedPreferences.getInstance();
+      await prefs.setString(_accessTokenKey, tokens.accessToken);
+      if (tokens.refreshToken != null) {
+        await prefs.setString(_refreshTokenKey, tokens.refreshToken!);
+      }
+      await prefs.setInt(_expiresAtKey, tokens.expiresAt.millisecondsSinceEpoch);
+
+      developer.log('Token refreshed successfully', name: 'auth');
+
+      return currentState.copyWith(
+        accessToken: tokens.accessToken,
+        refreshToken: tokens.refreshToken ?? currentState.refreshToken,
+        expiresAt: tokens.expiresAt,
+      );
+    } catch (e) {
+      developer.log('Token refresh failed: $e', name: 'auth');
+      await _clearStoredAuth();
+      return const AuthState();
+    }
+  }
+
+  /// Sign in with the appropriate method for the platform.
+  ///
+  /// - **Web**: Redirects to Authentik for OIDC authentication
+  /// - **Mobile**: Opens Authentik login via OIDC, then syncs with core-api
   Future<void> signIn() async {
-    // TODO: Implement OIDC flow with flutter_appauth
-    // For now, this is a placeholder that will be implemented
-    // when native platform configuration is complete.
-    developer.log('Sign in requested - OIDC not yet configured', name: 'auth');
+    if (!AppConfig.requiresAuth) {
+      developer.log('Auth not required in LAN mode', name: 'auth');
+      // In LAN mode, set a minimal authenticated state
+      state = const AsyncData(AuthState(isAuthenticated: true));
+      return;
+    }
+
+    // Web: Use OIDC flow with browser redirect
+    if (kIsWeb) {
+      developer.log('Web sign-in: starting OIDC flow', name: 'auth');
+      state = const AsyncLoading();
+
+      try {
+        final oidcService = OidcServiceWeb();
+        final authUrl = await oidcService.getAuthorizationUrl();
+        developer.log('Redirecting to: $authUrl', name: 'auth');
+        web_utils.redirectTo(authUrl);
+        // Browser will redirect, so we don't update state here
+      } catch (e, stack) {
+        developer.log('Failed to start OIDC flow: $e', name: 'auth');
+        state = AsyncError(e, stack);
+      }
+      return;
+    }
+
+    // Mobile: Use OIDC flow with flutter_appauth
+    state = const AsyncLoading();
+
+    try {
+      // Step 1: OIDC authentication with Authentik
+      developer.log('Starting OIDC authentication', name: 'auth');
+      final oidcService = ref.read(oidcServiceProvider);
+      final tokens = await oidcService.signIn();
+
+      // Step 2: Sync with core-api to get user profile and roles
+      developer.log('Syncing with core-api', name: 'auth');
+      final authDatasource = ref.read(authDatasourceProvider);
+      final syncResponse = await authDatasource.syncUser(tokens.accessToken);
+
+      // Step 3: Store credentials and user data
+      await _storeAuth(
+        accessToken: tokens.accessToken,
+        refreshToken: tokens.refreshToken,
+        expiresAt: tokens.expiresAt,
+        userId: syncResponse.userId,
+        authentikId: syncResponse.authentikId,
+        userName: syncResponse.name,
+        userEmail: syncResponse.email,
+        avatarUrl: syncResponse.avatarUrl,
+        roles: syncResponse.roles,
+        preferences: syncResponse.preferences,
+      );
+
+      state = AsyncData(AuthState(
+        isAuthenticated: true,
+        accessToken: tokens.accessToken,
+        refreshToken: tokens.refreshToken,
+        expiresAt: tokens.expiresAt,
+        userId: syncResponse.userId,
+        authentikId: syncResponse.authentikId,
+        userName: syncResponse.name,
+        userEmail: syncResponse.email,
+        avatarUrl: syncResponse.avatarUrl,
+        roles: syncResponse.roles,
+        preferences: syncResponse.preferences,
+      ));
+
+      developer.log(
+        'Authenticated as ${syncResponse.name} with ${syncResponse.roles.length} roles',
+        name: 'auth',
+      );
+    } on OidcException catch (e) {
+      developer.log('OIDC authentication failed: $e', name: 'auth');
+      state = AsyncError(e, StackTrace.current);
+    } catch (e, stack) {
+      developer.log('Authentication failed: $e', name: 'auth');
+      state = AsyncError(e, stack);
+    }
+  }
+
+  /// Handle OIDC callback after Authentik redirects back (web only).
+  ///
+  /// [code] is the authorization code from the callback URL.
+  /// [state] is the state parameter for CSRF verification.
+  Future<void> handleOidcCallback(String code, String callbackState) async {
+    if (!kIsWeb) {
+      developer.log('handleOidcCallback called on non-web platform', name: 'auth');
+      return;
+    }
+
+    developer.log('Handling OIDC callback', name: 'auth');
+    state = const AsyncLoading();
+
+    try {
+      // Step 1: Exchange code for tokens
+      final oidcService = OidcServiceWeb();
+      final tokens = await oidcService.exchangeCode(code, callbackState);
+
+      // Step 2: Sync with core-api to get user profile and roles
+      developer.log('Syncing with core-api', name: 'auth');
+      final authDatasource = ref.read(authDatasourceProvider);
+      final syncResponse = await authDatasource.syncUser(tokens.accessToken);
+
+      developer.log(
+        'Synced user: ${syncResponse.name} with ${syncResponse.roles.length} roles',
+        name: 'auth',
+      );
+
+      // Step 3: Store credentials and user data from sync response
+      await _storeAuth(
+        accessToken: tokens.accessToken,
+        refreshToken: tokens.refreshToken,
+        expiresAt: tokens.expiresAt,
+        userId: syncResponse.userId,
+        authentikId: syncResponse.authentikId,
+        userName: syncResponse.name,
+        userEmail: syncResponse.email,
+        avatarUrl: syncResponse.avatarUrl,
+        roles: syncResponse.roles,
+        preferences: syncResponse.preferences,
+      );
+
+      state = AsyncData(AuthState(
+        isAuthenticated: true,
+        accessToken: tokens.accessToken,
+        refreshToken: tokens.refreshToken,
+        expiresAt: tokens.expiresAt,
+        userId: syncResponse.userId,
+        authentikId: syncResponse.authentikId,
+        userName: syncResponse.name,
+        userEmail: syncResponse.email,
+        avatarUrl: syncResponse.avatarUrl,
+        roles: syncResponse.roles,
+        preferences: syncResponse.preferences,
+      ));
+
+      developer.log('Authenticated as ${syncResponse.name}', name: 'auth');
+
+      // Clean up the URL by removing the query parameters
+      web_utils.replaceUrl('/');
+    } on OidcException catch (e) {
+      developer.log('OIDC callback failed: $e', name: 'auth');
+      state = AsyncError(e, StackTrace.current);
+    } catch (e, stack) {
+      developer.log('Callback handling failed: $e', name: 'auth');
+      state = AsyncError(e, stack);
+    }
   }
 
   /// Sign out and clear stored credentials.
+  ///
+  /// On web, also redirects to Authentik's logout endpoint to end the SSO session.
   Future<void> signOut() async {
+    // Clear local storage first
     await _clearStoredAuth();
     state = const AsyncData(AuthState());
-    developer.log('Signed out', name: 'auth');
+    developer.log('Signed out locally', name: 'auth');
+
+    // On web, redirect to Authentik logout to end SSO session
+    if (kIsWeb && AppConfig.requiresAuth) {
+      try {
+        final oidcService = OidcServiceWeb();
+        final logoutUrl = await oidcService.getLogoutUrl();
+        developer.log('Redirecting to Authentik logout', name: 'auth');
+        web_utils.redirectTo(logoutUrl);
+      } catch (e) {
+        developer.log('Failed to get logout URL: $e', name: 'auth');
+        // Local logout already done, just reload to trigger re-auth
+        web_utils.redirectTo('/');
+      }
+    }
   }
 
-  /// Update auth state (called after successful OIDC flow).
-  Future<void> setAuthenticated({
+  /// Update user preferences.
+  Future<void> updatePreferences({
+    String? theme,
+    String? defaultRoom,
+    Map<String, dynamic>? preferencesJson,
+  }) async {
+    final currentState = state.value;
+    if (currentState == null || !currentState.isAuthenticated) return;
+
+    try {
+      final authDatasource = ref.read(authDatasourceProvider);
+      final newPrefs = await authDatasource.updatePreferences(
+        theme: theme,
+        defaultRoom: defaultRoom,
+        preferencesJson: preferencesJson,
+      );
+
+      // Update stored preferences
+      final prefs = await SharedPreferences.getInstance();
+      await prefs.setString(_preferencesKey, jsonEncode(newPrefs.toJson()));
+
+      state = AsyncData(currentState.copyWith(preferences: newPrefs));
+      developer.log('Preferences updated', name: 'auth');
+    } catch (e) {
+      developer.log('Failed to update preferences: $e', name: 'auth');
+      rethrow;
+    }
+  }
+
+  /// Store authentication data to SharedPreferences.
+  Future<void> _storeAuth({
     required String accessToken,
     String? refreshToken,
     DateTime? expiresAt,
     String? userId,
+    String? authentikId,
     String? userName,
     String? userEmail,
+    String? avatarUrl,
+    List<Role>? roles,
+    UserPreferences? preferences,
   }) async {
     final prefs = await SharedPreferences.getInstance();
 
@@ -99,20 +394,27 @@ class AuthNotifier extends _$AuthNotifier {
       await prefs.setInt(_expiresAtKey, expiresAt.millisecondsSinceEpoch);
     }
     if (userId != null) await prefs.setString(_userIdKey, userId);
+    if (authentikId != null) await prefs.setString(_authentikIdKey, authentikId);
     if (userName != null) await prefs.setString(_userNameKey, userName);
     if (userEmail != null) await prefs.setString(_userEmailKey, userEmail);
+    if (avatarUrl != null) await prefs.setString(_avatarUrlKey, avatarUrl);
 
-    state = AsyncData(AuthState(
-      isAuthenticated: true,
-      accessToken: accessToken,
-      refreshToken: refreshToken,
-      expiresAt: expiresAt,
-      userId: userId,
-      userName: userName,
-      userEmail: userEmail,
-    ));
+    // Store roles as JSON
+    if (roles != null) {
+      final rolesJson = jsonEncode(roles.map((r) => {
+        'id': r.id,
+        'name': r.name,
+        'domain': r.domain.value,
+        'category': r.category,
+        'action': r.action.name,
+      }).toList());
+      await prefs.setString(_rolesKey, rolesJson);
+    }
 
-    developer.log('Authenticated as $userName', name: 'auth');
+    // Store preferences as JSON
+    if (preferences != null) {
+      await prefs.setString(_preferencesKey, jsonEncode(preferences.toJson()));
+    }
   }
 
   Future<void> _clearStoredAuth() async {
@@ -121,7 +423,11 @@ class AuthNotifier extends _$AuthNotifier {
     await prefs.remove(_refreshTokenKey);
     await prefs.remove(_expiresAtKey);
     await prefs.remove(_userIdKey);
+    await prefs.remove(_authentikIdKey);
     await prefs.remove(_userNameKey);
     await prefs.remove(_userEmailKey);
+    await prefs.remove(_avatarUrlKey);
+    await prefs.remove(_rolesKey);
+    await prefs.remove(_preferencesKey);
   }
 }

lib/core/auth/auth_state.dart

@@ -1,18 +1,46 @@
 import 'package:freezed_annotation/freezed_annotation.dart';
 
+import 'permissions.dart';
+import 'user_preferences.dart';
+
 part 'auth_state.freezed.dart';
 
-/// Authentication state.
+/// Authentication state including user profile, roles, and preferences.
 @freezed
 sealed class AuthState with _$AuthState {
   const factory AuthState({
+    /// Whether user is authenticated.
     @Default(false) bool isAuthenticated,
+
+    /// OIDC access token.
     String? accessToken,
+
+    /// OIDC refresh token.
     String? refreshToken,
+
+    /// Token expiration time.
     DateTime? expiresAt,
+
+    /// Internal user ID (from core-api).
     String? userId,
+
+    /// Authentik user ID.
+    String? authentikId,
+
+    /// User display name.
     String? userName,
+
+    /// User email address.
     String? userEmail,
+
+    /// User avatar URL.
+    String? avatarUrl,
+
+    /// User's permission roles.
+    @Default([]) List<Role> roles,
+
+    /// User preferences.
+    UserPreferences? preferences,
   }) = _AuthState;
 
   const AuthState._();
@@ -23,4 +51,12 @@ sealed class AuthState with _$AuthState {
     // Consider expired if less than 1 minute remaining
     return DateTime.now().isAfter(expiresAt!.subtract(const Duration(minutes: 1)));
   }
+
+  /// Check if user has the specified permission.
+  bool hasPermission(Domain domain, Action action, {String category = 'general'}) {
+    return roles.hasPermission(domain, action, category: category);
+  }
+
+  /// Check if user is a global admin.
+  bool get isGlobalAdmin => roles.isGlobalAdmin;
 }

lib/core/auth/oidc_service.dart

@@ -0,0 +1,115 @@
+import 'package:flutter_appauth/flutter_appauth.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+import '../config/app_config.dart';
+
+part 'oidc_service.g.dart';
+
+/// OIDC token response containing access and refresh tokens.
+class OidcTokens {
+  const OidcTokens({
+    required this.accessToken,
+    required this.refreshToken,
+    required this.expiresAt,
+    this.idToken,
+  });
+
+  final String accessToken;
+  final String? refreshToken;
+  final DateTime expiresAt;
+  final String? idToken;
+}
+
+/// Service for OIDC authentication using flutter_appauth.
+///
+/// Handles the Authorization Code flow with PKCE for secure authentication
+/// against Authentik.
+class OidcService {
+  OidcService({FlutterAppAuth? appAuth}) : _appAuth = appAuth ?? const FlutterAppAuth();
+
+  final FlutterAppAuth _appAuth;
+
+  /// OIDC scopes to request.
+  static const _scopes = ['openid', 'profile', 'email', 'offline_access'];
+
+  /// Redirect URI for the app.
+  static String get _redirectUri => '${AppConfig.authRedirectScheme}://callback';
+
+  /// Start the authorization code flow.
+  ///
+  /// Opens a browser/webview for user to authenticate with Authentik,
+  /// then exchanges the authorization code for tokens.
+  ///
+  /// Throws [OidcException] if authentication fails.
+  Future<OidcTokens> signIn() async {
+    try {
+      final result = await _appAuth.authorizeAndExchangeCode(
+        AuthorizationTokenRequest(
+          AppConfig.authClientId,
+          _redirectUri,
+          discoveryUrl: AppConfig.authDiscoveryUrl,
+          scopes: _scopes,
+        ),
+      );
+
+      if (result.accessToken == null) {
+        throw OidcException('Authorization failed: no access token');
+      }
+
+      return OidcTokens(
+        accessToken: result.accessToken!,
+        refreshToken: result.refreshToken,
+        expiresAt: result.accessTokenExpirationDateTime ?? DateTime.now().add(const Duration(hours: 1)),
+        idToken: result.idToken,
+      );
+    } on Exception catch (e) {
+      throw OidcException('Authorization failed: $e');
+    }
+  }
+
+  /// Refresh the access token using a refresh token.
+  ///
+  /// Throws [OidcException] if refresh fails.
+  Future<OidcTokens> refreshToken(String refreshToken) async {
+    try {
+      final result = await _appAuth.token(
+        TokenRequest(
+          AppConfig.authClientId,
+          _redirectUri,
+          discoveryUrl: AppConfig.authDiscoveryUrl,
+          refreshToken: refreshToken,
+          scopes: _scopes,
+        ),
+      );
+
+      if (result.accessToken == null) {
+        throw OidcException('Token refresh failed: no access token');
+      }
+
+      return OidcTokens(
+        accessToken: result.accessToken!,
+        refreshToken: result.refreshToken ?? refreshToken,
+        expiresAt: result.accessTokenExpirationDateTime ?? DateTime.now().add(const Duration(hours: 1)),
+        idToken: result.idToken,
+      );
+    } on Exception catch (e) {
+      throw OidcException('Token refresh failed: $e');
+    }
+  }
+}
+
+/// Exception thrown when OIDC operations fail.
+class OidcException implements Exception {
+  const OidcException(this.message);
+
+  final String message;
+
+  @override
+  String toString() => 'OidcException: $message';
+}
+
+/// Provider for the OIDC service.
+@riverpod
+OidcService oidcService(Ref ref) {
+  return OidcService();
+}

lib/core/auth/oidc_service_web.dart

@@ -0,0 +1,245 @@
+import 'dart:async';
+import 'dart:convert';
+import 'dart:developer' as developer;
+import 'dart:math';
+
+import 'package:crypto/crypto.dart';
+import 'package:dio/dio.dart';
+
+import '../config/app_config.dart';
+import 'oidc_service.dart';
+import 'web_utils.dart' as web_utils;
+
+/// Web implementation of OIDC service using browser redirect flow.
+///
+/// Uses Authorization Code flow with PKCE for secure authentication.
+/// On web, we can't use flutter_appauth, so we implement the flow manually
+/// using browser redirects and URL parsing.
+class OidcServiceWeb implements OidcService {
+  OidcServiceWeb({Dio? dio}) : _dio = dio ?? Dio();
+
+  final Dio _dio;
+
+  /// OIDC scopes to request.
+  static const _scopes = ['openid', 'profile', 'email', 'offline_access'];
+
+  /// Redirect URI for web.
+  static String get _redirectUri => '${AppConfig.webBaseUrl}/callback';
+
+  // SessionStorage keys for PKCE state (persists across redirect)
+  static const _codeVerifierKey = 'oidc_code_verifier';
+  static const _stateKey = 'oidc_state';
+
+  /// Get the authorization URL to redirect the browser to.
+  ///
+  /// Returns a URL that the browser should navigate to for authentication.
+  /// The [codeVerifier] and [state] are stored for later verification.
+  ///
+  /// If [silent] is true, adds `prompt=none` to skip login UI.
+  /// This is used when the user already has an Authentik session (via NPM).
+  /// Authentik will instantly redirect back with a code, or return an error
+  /// if there's no valid session.
+  Future<String> getAuthorizationUrl({bool silent = false}) async {
+    // Fetch OIDC discovery document
+    final discovery = await _fetchDiscovery();
+    final authEndpoint = discovery['authorization_endpoint'] as String;
+
+    // Generate PKCE code verifier and challenge
+    final codeVerifier = _generateCodeVerifier();
+    final codeChallenge = _generateCodeChallenge(codeVerifier);
+
+    // Generate state for CSRF protection
+    final state = _generateRandomString(32);
+
+    // Store PKCE state in sessionStorage (persists across redirect)
+    web_utils.setSessionStorage(_codeVerifierKey, codeVerifier);
+    web_utils.setSessionStorage(_stateKey, state);
+
+    // Build authorization URL
+    final params = {
+      'client_id': AppConfig.authClientId,
+      'redirect_uri': _redirectUri,
+      'response_type': 'code',
+      'scope': _scopes.join(' '),
+      'code_challenge': codeChallenge,
+      'code_challenge_method': 'S256',
+      'state': state,
+      if (silent) 'prompt': 'none', // Silent auth - no UI, instant redirect
+    };
+
+    final uri = Uri.parse(authEndpoint).replace(queryParameters: params);
+    developer.log('Authorization URL (silent=$silent): $uri', name: 'oidc_web');
+    return uri.toString();
+  }
+
+  /// Exchange authorization code for tokens.
+  ///
+  /// Call this after the browser redirects back with the authorization code.
+  /// [code] is the authorization code from the callback URL.
+  /// [state] is the state parameter from the callback URL (verified for CSRF).
+  Future<OidcTokens> exchangeCode(String code, String state) async {
+    // Retrieve PKCE state from sessionStorage
+    final storedState = web_utils.getSessionStorage(_stateKey);
+    final codeVerifier = web_utils.getSessionStorage(_codeVerifierKey);
+
+    developer.log('Stored state: $storedState, received state: $state', name: 'oidc_web');
+    developer.log('Code verifier present: ${codeVerifier != null}', name: 'oidc_web');
+
+    // Verify state matches
+    if (storedState == null || state != storedState) {
+      _clearPkceState();
+      throw OidcException('State mismatch - possible CSRF attack');
+    }
+
+    if (codeVerifier == null) {
+      _clearPkceState();
+      throw OidcException('No code verifier - flow not started properly');
+    }
+
+    try {
+      // Fetch token endpoint from discovery
+      final discovery = await _fetchDiscovery();
+      final tokenEndpoint = discovery['token_endpoint'] as String;
+
+      developer.log('Exchanging code at: $tokenEndpoint', name: 'oidc_web');
+
+      // Exchange code for tokens
+      final response = await _dio.post<Map<String, dynamic>>(
+        tokenEndpoint,
+        data: {
+          'grant_type': 'authorization_code',
+          'client_id': AppConfig.authClientId,
+          'redirect_uri': _redirectUri,
+          'code': code,
+          'code_verifier': codeVerifier,
+        },
+        options: Options(
+          contentType: Headers.formUrlEncodedContentType,
+        ),
+      );
+
+      final data = response.data!;
+      developer.log('Token exchange successful', name: 'oidc_web');
+
+      // Clear stored PKCE state
+      _clearPkceState();
+
+      return OidcTokens(
+        accessToken: data['access_token'] as String,
+        refreshToken: data['refresh_token'] as String?,
+        expiresAt: DateTime.now().add(
+          Duration(seconds: data['expires_in'] as int? ?? 3600),
+        ),
+        idToken: data['id_token'] as String?,
+      );
+    } on DioException catch (e) {
+      developer.log('Token exchange failed: $e', name: 'oidc_web');
+      _clearPkceState();
+      throw OidcException('Token exchange failed: ${e.message}');
+    }
+  }
+
+  /// Clear PKCE state from sessionStorage.
+  void _clearPkceState() {
+    web_utils.removeSessionStorage(_codeVerifierKey);
+    web_utils.removeSessionStorage(_stateKey);
+  }
+
+  /// Not used on web - use [getAuthorizationUrl] and [exchangeCode] instead.
+  @override
+  Future<OidcTokens> signIn() async {
+    throw OidcException(
+      'signIn() not supported on web. Use getAuthorizationUrl() and exchangeCode() instead.',
+    );
+  }
+
+  /// Refresh the access token using a refresh token.
+  @override
+  Future<OidcTokens> refreshToken(String refreshToken) async {
+    try {
+      final discovery = await _fetchDiscovery();
+      final tokenEndpoint = discovery['token_endpoint'] as String;
+
+      final response = await _dio.post<Map<String, dynamic>>(
+        tokenEndpoint,
+        data: {
+          'grant_type': 'refresh_token',
+          'client_id': AppConfig.authClientId,
+          'refresh_token': refreshToken,
+        },
+        options: Options(
+          contentType: Headers.formUrlEncodedContentType,
+        ),
+      );
+
+      final data = response.data!;
+
+      return OidcTokens(
+        accessToken: data['access_token'] as String,
+        refreshToken: data['refresh_token'] as String? ?? refreshToken,
+        expiresAt: DateTime.now().add(
+          Duration(seconds: data['expires_in'] as int? ?? 3600),
+        ),
+        idToken: data['id_token'] as String?,
+      );
+    } on DioException catch (e) {
+      throw OidcException('Token refresh failed: ${e.message}');
+    }
+  }
+
+  /// Fetch OIDC discovery document.
+  Future<Map<String, dynamic>> _fetchDiscovery() async {
+    final response = await _dio.get<Map<String, dynamic>>(
+      AppConfig.authDiscoveryUrl,
+    );
+    return response.data!;
+  }
+
+  /// Generate a random code verifier for PKCE.
+  String _generateCodeVerifier() {
+    return _generateRandomString(64);
+  }
+
+  /// Generate code challenge from verifier using S256.
+  String _generateCodeChallenge(String verifier) {
+    final bytes = utf8.encode(verifier);
+    final digest = sha256.convert(bytes);
+    return base64Url.encode(digest.bytes).replaceAll('=', '');
+  }
+
+  /// Generate a random string of given length.
+  String _generateRandomString(int length) {
+    const chars =
+        'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~';
+    final random = Random.secure();
+    return List.generate(length, (_) => chars[random.nextInt(chars.length)])
+        .join();
+  }
+
+  /// Get the logout URL to redirect the browser to for SSO logout.
+  ///
+  /// [idToken] is optional but recommended for logout verification.
+  /// After logout, Authentik redirects back to [postLogoutRedirectUri].
+  Future<String> getLogoutUrl({String? idToken}) async {
+    final discovery = await _fetchDiscovery();
+    final endSessionEndpoint = discovery['end_session_endpoint'] as String?;
+
+    if (endSessionEndpoint == null) {
+      // Fallback: just redirect to home, local state already cleared
+      developer.log('No end_session_endpoint in discovery', name: 'oidc_web');
+      return AppConfig.webBaseUrl;
+    }
+
+    final params = <String, String>{
+      'post_logout_redirect_uri': AppConfig.webBaseUrl,
+    };
+
+    if (idToken != null) {
+      params['id_token_hint'] = idToken;
+    }
+
+    final uri = Uri.parse(endSessionEndpoint).replace(queryParameters: params);
+    developer.log('Logout URL: $uri', name: 'oidc_web');
+    return uri.toString();
+  }
+}

lib/core/auth/permission_gate.dart

@@ -0,0 +1,110 @@
+import 'package:flutter/widgets.dart' hide Action;
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+import 'auth_provider.dart';
+import 'permissions.dart';
+
+/// A widget that conditionally renders its child based on user permissions.
+///
+/// Example:
+/// ```dart
+/// PermissionGate(
+///   domain: Domain.controlRoom,
+///   action: Action.admin,
+///   child: DeleteButton(),
+///   fallback: Text('No permission'),
+/// )
+/// ```
+class PermissionGate extends ConsumerWidget {
+  const PermissionGate({
+    super.key,
+    required this.domain,
+    required this.action,
+    this.category = 'general',
+    required this.child,
+    this.fallback,
+  });
+
+  /// The domain required for this permission.
+  final Domain domain;
+
+  /// The action level required (viewer, user, editor, admin).
+  final Action action;
+
+  /// Optional category within the domain (defaults to 'general').
+  final String category;
+
+  /// Widget to show when user has permission.
+  final Widget child;
+
+  /// Widget to show when user lacks permission (defaults to empty).
+  final Widget? fallback;
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final authState = ref.watch(authProvider);
+
+    final hasPermission = authState.maybeWhen(
+      data: (state) => state.hasPermission(domain, action, category: category),
+      orElse: () => false,
+    );
+
+    if (hasPermission) {
+      return child;
+    }
+
+    return fallback ?? const SizedBox.shrink();
+  }
+}
+
+/// A widget that shows its child only if the user is a global admin.
+class AdminGate extends ConsumerWidget {
+  const AdminGate({
+    super.key,
+    required this.child,
+    this.fallback,
+  });
+
+  /// Widget to show when user is admin.
+  final Widget child;
+
+  /// Widget to show when user is not admin (defaults to empty).
+  final Widget? fallback;
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final authState = ref.watch(authProvider);
+
+    final isAdmin = authState.maybeWhen(
+      data: (state) => state.isGlobalAdmin,
+      orElse: () => false,
+    );
+
+    if (isAdmin) {
+      return child;
+    }
+
+    return fallback ?? const SizedBox.shrink();
+  }
+}
+
+/// Extension for checking permissions in code.
+extension PermissionCheck on WidgetRef {
+  /// Check if the current user has a specific permission.
+  bool hasPermission(Domain domain, Action action, {String category = 'general'}) {
+    final authState = read(authProvider);
+    return authState.maybeWhen(
+      data: (state) => state.hasPermission(domain, action, category: category),
+      orElse: () => false,
+    );
+  }
+
+  /// Check if the current user is a global admin.
+  bool get isGlobalAdmin {
+    final authState = read(authProvider);
+    return authState.maybeWhen(
+      data: (state) => state.isGlobalAdmin,
+      orElse: () => false,
+    );
+  }
+}

lib/core/auth/permissions.dart

@@ -0,0 +1,137 @@
+// Permission system for role-based access control.
+//
+// Roles follow the format: `domain.category:action`
+// - Domain: Feature area (control-room, media, etc.)
+// - Category: Sub-area within domain (default: general)
+// - Action: Permission level (viewer < user < editor < admin)
+
+/// Permission domains matching feature areas.
+enum Domain {
+  controlRoom('control-room'),
+  library('library'),
+  media('media'),
+  ai('ai'),
+  housekeeper('housekeeper'),
+  developer('developer'),
+  documents('documents'),
+  gaming('gaming'),
+  admin('admin');
+
+  const Domain(this.value);
+
+  /// The API string value for this domain.
+  final String value;
+
+  /// Parse a domain string from API response.
+  static Domain? fromString(String value) {
+    for (final domain in Domain.values) {
+      if (domain.value == value) return domain;
+    }
+    return null;
+  }
+}
+
+/// Permission actions in hierarchical order.
+///
+/// Higher actions imply lower ones:
+/// - admin implies editor, user, viewer
+/// - editor implies user, viewer
+/// - user implies viewer
+enum Action {
+  viewer(1),
+  user(2),
+  editor(3),
+  admin(4);
+
+  const Action(this.level);
+
+  /// Numeric level for comparison (higher = more permissions).
+  final int level;
+
+  /// Check if this action grants at least the required action.
+  bool grants(Action required) => level >= required.level;
+
+  /// Parse an action string from API response.
+  static Action? fromString(String value) {
+    for (final action in Action.values) {
+      if (action.name == value) return action;
+    }
+    return null;
+  }
+}
+
+/// A permission role assigned to a user.
+///
+/// Roles are parsed from the API format: `domain.category:action`
+class Role {
+  const Role({
+    required this.id,
+    required this.name,
+    required this.domain,
+    required this.category,
+    required this.action,
+  });
+
+  /// Unique role ID.
+  final String id;
+
+  /// Full role name (e.g., "control-room.general:admin").
+  final String name;
+
+  /// Permission domain.
+  final Domain domain;
+
+  /// Permission category (usually "general").
+  final String category;
+
+  /// Permission action level.
+  final Action action;
+
+  /// Check if this role grants access for the given domain and action.
+  ///
+  /// Global admin (`admin.general:admin`) grants access to everything.
+  /// Otherwise, domain and category must match, and action level must be sufficient.
+  bool grants(Domain domain, Action action, {String category = 'general'}) {
+    // Global admin override
+    if (this.domain == Domain.admin &&
+        this.category == 'general' &&
+        this.action == Action.admin) {
+      return true;
+    }
+
+    // Check domain and category match
+    if (this.domain != domain || this.category != category) {
+      return false;
+    }
+
+    // Check action hierarchy
+    return this.action.grants(action);
+  }
+
+  @override
+  String toString() => 'Role($name)';
+
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      other is Role && runtimeType == other.runtimeType && id == other.id;
+
+  @override
+  int get hashCode => id.hashCode;
+}
+
+/// Extension for checking permissions on a list of roles.
+extension RoleListPermissions on List<Role> {
+  /// Check if any role grants the required permission.
+  bool hasPermission(Domain domain, Action action, {String category = 'general'}) {
+    return any((role) => role.grants(domain, action, category: category));
+  }
+
+  /// Check if any role grants any of the required permissions.
+  bool hasAnyPermission(List<(Domain, Action)> permissions) {
+    return permissions.any((p) => hasPermission(p.$1, p.$2));
+  }
+
+  /// Check if user is a global admin.
+  bool get isGlobalAdmin => hasPermission(Domain.admin, Action.admin);
+}

lib/core/auth/user_preferences.dart

@@ -0,0 +1,22 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'user_preferences.freezed.dart';
+part 'user_preferences.g.dart';
+
+/// User preferences synced from core-api.
+@freezed
+sealed class UserPreferences with _$UserPreferences {
+  const factory UserPreferences({
+    /// Theme preference: system, light, dark
+    @Default('system') String theme,
+
+    /// Default room for housekeeping
+    @Default('front-hall') String defaultRoom,
+
+    /// Extended preferences as JSON
+    @Default({}) Map<String, dynamic> preferencesJson,
+  }) = _UserPreferences;
+
+  factory UserPreferences.fromJson(Map<String, dynamic> json) =>
+      _$UserPreferencesFromJson(json);
+}

lib/core/auth/web_utils.dart

@@ -0,0 +1,7 @@
+/// Web utilities with conditional imports.
+///
+/// Uses stub implementation on non-web platforms.
+library;
+
+export 'web_utils_stub.dart'
+    if (dart.library.js_interop) 'web_utils_web.dart';

lib/core/auth/web_utils_stub.dart

@@ -0,0 +1,32 @@
+/// Stub for non-web platforms.
+library;
+
+/// Redirect to a URL (no-op on non-web).
+void redirectTo(String url) {
+  throw UnsupportedError('redirectTo is only supported on web');
+}
+
+/// Get current URL (no-op on non-web).
+String getCurrentUrl() {
+  throw UnsupportedError('getCurrentUrl is only supported on web');
+}
+
+/// Replace current URL without navigation (no-op on non-web).
+void replaceUrl(String url) {
+  throw UnsupportedError('replaceUrl is only supported on web');
+}
+
+/// Store a value in sessionStorage (no-op on non-web).
+void setSessionStorage(String key, String value) {
+  throw UnsupportedError('setSessionStorage is only supported on web');
+}
+
+/// Get a value from sessionStorage (no-op on non-web).
+String? getSessionStorage(String key) {
+  throw UnsupportedError('getSessionStorage is only supported on web');
+}
+
+/// Remove a value from sessionStorage (no-op on non-web).
+void removeSessionStorage(String key) {
+  throw UnsupportedError('removeSessionStorage is only supported on web');
+}

lib/core/auth/web_utils_web.dart

@@ -0,0 +1,34 @@
+/// Web-specific utilities for browser operations.
+library;
+
+import 'package:web/web.dart' as web;
+
+/// Redirect the browser to a URL.
+void redirectTo(String url) {
+  web.window.location.href = url;
+}
+
+/// Get the current browser URL.
+String getCurrentUrl() {
+  return web.window.location.href;
+}
+
+/// Replace the current URL in history without navigation.
+void replaceUrl(String url) {
+  web.window.history.replaceState(null, '', url);
+}
+
+/// Store a value in sessionStorage.
+void setSessionStorage(String key, String value) {
+  web.window.sessionStorage.setItem(key, value);
+}
+
+/// Get a value from sessionStorage.
+String? getSessionStorage(String key) {
+  return web.window.sessionStorage.getItem(key);
+}
+
+/// Remove a value from sessionStorage.
+void removeSessionStorage(String key) {
+  web.window.sessionStorage.removeItem(key);
+}

lib/core/config/app_config.dart

@@ -45,12 +45,18 @@ class AppConfig {
     defaultValue: 'tatlock-ui',
   );
 
-  /// Authentik redirect URI scheme
+  /// Authentik redirect URI scheme (for mobile/native)
   static const authRedirectScheme = String.fromEnvironment(
     'AUTH_REDIRECT_SCHEME',
     defaultValue: 'net.schweitz.tatlock',
   );
 
+  /// Web app base URL (for OIDC redirect URI on web)
+  static const webBaseUrl = String.fromEnvironment(
+    'WEB_BASE_URL',
+    defaultValue: 'https://home.schweitz.net',
+  );
+
   /// Whether running in debug mode
   static const isDebug = bool.fromEnvironment('DEBUG', defaultValue: false);
 

lib/core/config/url_strategy.dart

@@ -0,0 +1,5 @@
+/// URL strategy with conditional imports for web/non-web platforms.
+library;
+
+export 'url_strategy_stub.dart'
+    if (dart.library.js_interop) 'url_strategy_web.dart';

lib/core/config/url_strategy_stub.dart

@@ -0,0 +1,4 @@
+/// Stub for non-web platforms - does nothing.
+void configureUrlStrategy() {
+  // No-op on mobile/desktop
+}

lib/core/config/url_strategy_web.dart

@@ -0,0 +1,10 @@
+/// Web-specific URL strategy configuration.
+library;
+
+import 'package:flutter_web_plugins/url_strategy.dart';
+
+void configureUrlStrategy() {
+  // Use path-based URLs instead of hash-based (e.g., /login instead of /#/login)
+  // Required for OIDC callback to work properly
+  usePathUrlStrategy();
+}

lib/features/control_room/router.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
 import 'package:tatlock_ui/features/control_room/presentation/pages/control_room_page.dart';
+import 'package:tatlock_ui/routing/app_router.dart';
 import 'package:tatlock_ui/shared/layouts/widgets/nav_panel.dart';
 
 /// Route paths for Control Room.
@@ -66,7 +67,8 @@ List<RouteBase> controlRoomRoutes() {
       GoRoute(
         path: nav.path,
         name: 'controlRoom${_capitalize(nav.id.replaceAll('-', '_'))}',
-        builder: (context, state) => ControlRoomPage(nav: nav),
+        pageBuilder: (context, state) =>
+            noTransitionPage(context, state, ControlRoomPage(nav: nav)),
       ),
   ];
 }

lib/features/front_hall/data/models/system_stats_model.dart

@@ -0,0 +1,91 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'system_stats_model.freezed.dart';
+part 'system_stats_model.g.dart';
+
+/// System statistics response from Core API.
+@freezed
+sealed class SystemStats with _$SystemStats {
+  const factory SystemStats({
+    required CpuStats cpu,
+    required MemoryStats memory,
+    required List<DiskStats> disks,
+    required NetworkStats network,
+    required GpuStats gpu,
+    required String hostname,
+    @JsonKey(name: 'queried_at') required DateTime queriedAt,
+  }) = _SystemStats;
+
+  factory SystemStats.fromJson(Map<String, dynamic> json) =>
+      _$SystemStatsFromJson(json);
+}
+
+@freezed
+sealed class CpuStats with _$CpuStats {
+  const factory CpuStats({
+    @JsonKey(name: 'usage_percent') required double usagePercent,
+    required int cores,
+    @JsonKey(name: 'load_1m') double? load1m,
+    @JsonKey(name: 'load_5m') double? load5m,
+    @JsonKey(name: 'load_15m') double? load15m,
+  }) = _CpuStats;
+
+  factory CpuStats.fromJson(Map<String, dynamic> json) =>
+      _$CpuStatsFromJson(json);
+}
+
+@freezed
+sealed class MemoryStats with _$MemoryStats {
+  const factory MemoryStats({
+    @JsonKey(name: 'usage_percent') required double usagePercent,
+    @JsonKey(name: 'total_bytes') required int totalBytes,
+    @JsonKey(name: 'used_bytes') required int usedBytes,
+    @JsonKey(name: 'available_bytes') required int availableBytes,
+  }) = _MemoryStats;
+
+  factory MemoryStats.fromJson(Map<String, dynamic> json) =>
+      _$MemoryStatsFromJson(json);
+}
+
+@freezed
+sealed class DiskStats with _$DiskStats {
+  const factory DiskStats({
+    @JsonKey(name: 'mount_point') required String mountPoint,
+    required String device,
+    required String fstype,
+    @JsonKey(name: 'usage_percent') required double usagePercent,
+    @JsonKey(name: 'total_bytes') required int totalBytes,
+    @JsonKey(name: 'used_bytes') required int usedBytes,
+    @JsonKey(name: 'free_bytes') required int freeBytes,
+  }) = _DiskStats;
+
+  factory DiskStats.fromJson(Map<String, dynamic> json) =>
+      _$DiskStatsFromJson(json);
+}
+
+@freezed
+sealed class NetworkStats with _$NetworkStats {
+  const factory NetworkStats({
+    @JsonKey(name: 'bytes_sent') required int bytesSent,
+    @JsonKey(name: 'bytes_recv') required int bytesRecv,
+    @JsonKey(name: 'bytes_total') required int bytesTotal,
+  }) = _NetworkStats;
+
+  factory NetworkStats.fromJson(Map<String, dynamic> json) =>
+      _$NetworkStatsFromJson(json);
+}
+
+@freezed
+sealed class GpuStats with _$GpuStats {
+  const factory GpuStats({
+    required bool available,
+    String? name,
+    @JsonKey(name: 'usage_percent') double? usagePercent,
+    @JsonKey(name: 'total_bytes') int? totalBytes,
+    @JsonKey(name: 'used_bytes') int? usedBytes,
+    @JsonKey(name: 'free_bytes') int? freeBytes,
+  }) = _GpuStats;
+
+  factory GpuStats.fromJson(Map<String, dynamic> json) =>
+      _$GpuStatsFromJson(json);
+}

lib/features/front_hall/presentation/providers/system_stats_provider.dart

@@ -0,0 +1,14 @@
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+import 'package:tatlock_ui/core/api/api_client.dart';
+import 'package:tatlock_ui/features/front_hall/data/models/system_stats_model.dart';
+
+part 'system_stats_provider.g.dart';
+
+/// Fetches system stats from Core API.
+@riverpod
+Future<SystemStats> systemStats(Ref ref) async {
+  final dio = ref.watch(coreApiClientProvider);
+
+  final response = await dio.get('/tools/system/stats');
+  return SystemStats.fromJson(response.data as Map<String, dynamic>);
+}

lib/features/front_hall/presentation/widgets/dashboard_content.dart

@@ -1,16 +1,46 @@
+import 'dart:async';
+
 import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:tatlock_ui/features/front_hall/data/models/system_stats_model.dart';
+import 'package:tatlock_ui/features/front_hall/presentation/providers/system_stats_provider.dart';
+import 'package:tatlock_ui/shared/theme/stoplight_colors.dart';
 import 'package:tatlock_ui/shared/widgets/widgets.dart';
 import 'package:tatlock_ui/version.g.dart';
 
 /// Dashboard content shown in Front Hall when mode is dashboard.
 ///
 /// Displays system stats with gauges, weather, air quality, and version info.
-class DashboardContent extends StatelessWidget {
+/// Auto-refreshes system stats every 30 seconds.
+class DashboardContent extends ConsumerStatefulWidget {
   const DashboardContent({super.key});
 
+  @override
+  ConsumerState<DashboardContent> createState() => _DashboardContentState();
+}
+
+class _DashboardContentState extends ConsumerState<DashboardContent> {
+  Timer? _refreshTimer;
+
+  @override
+  void initState() {
+    super.initState();
+    _refreshTimer = Timer.periodic(
+      const Duration(seconds: 30),
+      (_) => ref.invalidate(systemStatsProvider),
+    );
+  }
+
+  @override
+  void dispose() {
+    _refreshTimer?.cancel();
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     final colorScheme = Theme.of(context).colorScheme;
+    final systemStatsAsync = ref.watch(systemStatsProvider);
 
     return ListView(
       padding: const EdgeInsets.all(16),
@@ -54,37 +84,33 @@ class DashboardContent extends StatelessWidget {
         // System Stats - Gauges
         _SectionHeader(title: 'System Stats', icon: Icons.monitor_heart),
         const SizedBox(height: 8),
-        Card(
-          child: Padding(
-            padding: const EdgeInsets.all(16),
-            child: GaugeRow(
-              gaugeSize: 90,
-              gauges: [
-                GaugeData(
-                  value: 0.35,
-                  label: 'CPU',
-                  icon: Icons.memory,
-                  color: colorScheme.primary,
-                ),
-                GaugeData(
-                  value: 0.62,
-                  label: 'Memory',
-                  icon: Icons.storage,
-                  color: colorScheme.secondary,
-                ),
-                GaugeData(
-                  value: 0.78,
-                  label: 'Disk',
-                  icon: Icons.disc_full,
-                  color: colorScheme.tertiary,
-                ),
-                GaugeData(
-                  value: 0.12,
-                  label: 'Network',
-                  icon: Icons.wifi,
-                  color: Colors.teal,
-                ),
-              ],
+        systemStatsAsync.when(
+          data: (stats) => _SystemStatsCard(stats: stats),
+          loading: () => const Card(
+            child: Padding(
+              padding: EdgeInsets.all(32),
+              child: Center(child: CircularProgressIndicator()),
+            ),
+          ),
+          error: (error, _) => Card(
+            child: Padding(
+              padding: const EdgeInsets.all(16),
+              child: Row(
+                children: [
+                  Icon(Icons.error_outline, color: colorScheme.error),
+                  const SizedBox(width: 12),
+                  Expanded(
+                    child: Text(
+                      'Failed to load system stats',
+                      style: TextStyle(color: colorScheme.error),
+                    ),
+                  ),
+                  IconButton(
+                    icon: const Icon(Icons.refresh),
+                    onPressed: () => ref.invalidate(systemStatsProvider),
+                  ),
+                ],
+              ),
             ),
           ),
         ),
@@ -165,3 +191,68 @@ class _SectionHeader extends StatelessWidget {
     );
   }
 }
+
+/// Card displaying system stats with gauges.
+class _SystemStatsCard extends StatelessWidget {
+  const _SystemStatsCard({required this.stats});
+
+  final SystemStats stats;
+
+  @override
+  Widget build(BuildContext context) {
+    // Build gauges list: CPU, Memory, GPU (if available), then all disks
+    final gauges = <GaugeData>[
+      GaugeData(
+        value: stats.cpu.usagePercent / 100,
+        label: 'CPU',
+        icon: Icons.memory,
+        color: StoplightColors.forPercent(stats.cpu.usagePercent),
+      ),
+      GaugeData(
+        value: stats.memory.usagePercent / 100,
+        label: 'RAM',
+        icon: Icons.storage,
+        color: StoplightColors.forPercent(stats.memory.usagePercent),
+      ),
+      if (stats.gpu.available && stats.gpu.usagePercent != null)
+        GaugeData(
+          value: stats.gpu.usagePercent! / 100,
+          label: 'VRAM',
+          icon: Icons.videocam,
+          color: StoplightColors.forPercent(stats.gpu.usagePercent!),
+        ),
+      // Add a gauge for each disk
+      ...stats.disks.map(
+        (disk) => GaugeData(
+          value: disk.usagePercent / 100,
+          label: _formatDiskLabel(disk),
+          icon: Icons.disc_full,
+          color: StoplightColors.forPercent(disk.usagePercent),
+        ),
+      ),
+    ];
+
+    return Card(
+      child: Padding(
+        padding: const EdgeInsets.all(24),
+        child: GaugeRow(
+          gaugeSize: 120,
+          gauges: gauges,
+        ),
+      ),
+    );
+  }
+
+  /// Formats disk label from mount point.
+  String _formatDiskLabel(DiskStats disk) {
+    final mount = disk.mountPoint;
+    if (mount == '/') return 'Root';
+    if (mount == '/hostfs') return 'Host';
+    if (mount.startsWith('/hostfs/')) return mount.substring(8);
+    if (mount.startsWith('/mnt/')) return mount.substring(5);
+    if (mount.startsWith('/media/')) return mount.substring(7);
+    // Return last path segment
+    final parts = mount.split('/');
+    return parts.isNotEmpty ? parts.last : mount;
+  }
+}

lib/features/front_hall/presentation/widgets/iframe_view_web.dart

@@ -1,8 +1,8 @@
-import 'dart:html' as html;
 import 'dart:ui_web' as ui_web;
 
 import 'package:flutter/material.dart';
 import 'package:url_launcher/url_launcher.dart';
+import 'package:web/web.dart' as web;
 
 /// Embedded iframe view for displaying external content (web only).
 ///
@@ -31,7 +31,7 @@ class IframeView extends StatefulWidget {
 
 class _IframeViewState extends State<IframeView> {
   late final String _viewType;
-  late html.IFrameElement _iframe;
+  late web.HTMLIFrameElement _iframe;
   bool _isLoading = true;
 
   @override
@@ -42,17 +42,18 @@ class _IframeViewState extends State<IframeView> {
   }
 
   void _createIframe() {
-    _iframe = html.IFrameElement()
+    _iframe = web.document.createElement('iframe') as web.HTMLIFrameElement
       ..src = widget.url
       ..style.border = 'none'
       ..style.width = '100%'
       ..style.height = '100%'
-      ..allow = 'fullscreen'
-      ..onLoad.listen((_) {
-        if (mounted) {
-          setState(() => _isLoading = false);
-        }
-      });
+      ..allow = 'fullscreen';
+
+    _iframe.onLoad.listen((_) {
+      if (mounted) {
+        setState(() => _isLoading = false);
+      }
+    });
 
     // Register the view factory
     ui_web.platformViewRegistry.registerViewFactory(

lib/features/security/router.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
 import 'package:tatlock_ui/features/security/presentation/pages/security_page.dart';
+import 'package:tatlock_ui/routing/app_router.dart';
 import 'package:tatlock_ui/shared/layouts/widgets/nav_panel.dart';
 
 /// Route paths for Security room.
@@ -60,7 +61,8 @@ List<RouteBase> securityRoutes() {
       GoRoute(
         path: nav.path,
         name: 'security${_capitalize(nav.id.replaceAll('-', '_'))}',
-        builder: (context, state) => SecurityPage(nav: nav),
+        pageBuilder: (context, state) =>
+            noTransitionPage(context, state, SecurityPage(nav: nav)),
       ),
   ];
 }

lib/main.dart

@@ -4,19 +4,26 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 
 import 'app.dart';
+import 'core/auth/auth_controller.dart';
+import 'core/config/url_strategy.dart';
 import 'version.g.dart';
 
-void main() {
+void main() async {
   WidgetsFlutterBinding.ensureInitialized();
 
-  developer.log(
-    '${AppVersion.name} v${AppVersion.fullVersion}',
-    name: 'tatlock_ui',
-  );
+  // Use path-based URLs on web (no-op on mobile/desktop)
+  configureUrlStrategy();
 
-  runApp(
-    const ProviderScope(
-      child: TatlockApp(),
-    ),
-  );
+  debugPrint('🪣 ${AppVersion.name} v${AppVersion.fullVersion}');
+
+  // Initialize auth before starting the app.
+  // This handles OIDC callback and silent auth on web.
+  // If it returns false, we're redirecting and shouldn't continue.
+  final authReady = await AuthController.initialize();
+  if (!authReady) {
+    developer.log('Auth redirecting, not starting app', name: 'tatlock_ui');
+    return; // Don't run the app - browser is redirecting
+  }
+
+  runApp(const ProviderScope(child: TatlockApp()));
 }

lib/routing/app_router.dart

@@ -8,6 +8,14 @@ import 'package:tatlock_ui/shared/layouts/app_scaffold.dart';
 
 part 'app_router.g.dart';
 
+/// No-animation page builder for instant transitions
+Page<void> noTransitionPage(BuildContext context, GoRouterState state, Widget child) {
+  return NoTransitionPage<void>(
+    key: state.pageKey,
+    child: child,
+  );
+}
+
 /// Route paths as constants.
 abstract class AppRoutes {
   static const frontHall = '/';
@@ -22,27 +30,29 @@ GoRouter appRouter(Ref ref) {
     initialLocation: AppRoutes.frontHall,
     debugLogDiagnostics: true,
     routes: [
+      // Main app routes (inside shell with app scaffold)
       ShellRoute(
         builder: (context, state, child) => AppScaffold(child: child),
         routes: [
           GoRoute(
             path: AppRoutes.frontHall,
             name: 'frontHall',
-            builder: (context, state) => const FrontHallPage(),
+            pageBuilder: (context, state) =>
+                noTransitionPage(context, state, const FrontHallPage()),
           ),
           ...controlRoomRoutes(),
           ...securityRoutes(),
           GoRoute(
             path: AppRoutes.parlor,
             name: 'parlor',
-            builder: (context, state) =>
-                const _PlaceholderPage(title: 'Parlor'),
+            pageBuilder: (context, state) =>
+                noTransitionPage(context, state, const _PlaceholderPage(title: 'Parlor')),
           ),
           GoRoute(
             path: AppRoutes.settings,
             name: 'settings',
-            builder: (context, state) =>
-                const _PlaceholderPage(title: 'Settings'),
+            pageBuilder: (context, state) =>
+                noTransitionPage(context, state, const _PlaceholderPage(title: 'Settings')),
           ),
         ],
       ),
@@ -84,3 +94,4 @@ class _PlaceholderPage extends StatelessWidget {
     );
   }
 }
+

lib/shared/layouts/app_scaffold.dart

@@ -1,5 +1,9 @@
+import 'package:flutter/foundation.dart' show kIsWeb;
 import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:go_router/go_router.dart';
+import 'package:tatlock_ui/core/auth/auth_provider.dart';
+import 'package:tatlock_ui/core/config/app_config.dart';
 import 'package:tatlock_ui/features/control_room/router.dart';
 import 'package:tatlock_ui/features/security/router.dart';
 import 'package:tatlock_ui/routing/app_router.dart';
@@ -7,6 +11,11 @@ import 'package:tatlock_ui/shared/layouts/widgets/top_header_bar.dart';
 
 /// Main application scaffold with top header navigation.
 ///
+/// Handles authentication automatically:
+/// - If not authenticated, auto-initiates OIDC flow
+/// - Shows loading state during authentication
+/// - Shows error state if auth fails (with retry)
+///
 /// Layout structure per UI_LAYOUT.md:
 /// ```
 /// ┌─────────────────────────────────────────────────────────────────┐
@@ -15,16 +24,62 @@ import 'package:tatlock_ui/shared/layouts/widgets/top_header_bar.dart';
 /// │  BODY: Room page content (may include room-specific sidebar)    │
 /// └─────────────────────────────────────────────────────────────────┘
 /// ```
-class AppScaffold extends StatelessWidget {
+class AppScaffold extends ConsumerStatefulWidget {
   const AppScaffold({super.key, required this.child});
 
   final Widget child;
 
+  @override
+  ConsumerState<AppScaffold> createState() => _AppScaffoldState();
+}
+
+class _AppScaffoldState extends ConsumerState<AppScaffold> {
   // Header height must match TopHeaderBar._headerHeight
   static const double _headerHeight = 56.0;
 
+  bool _authInitiated = false;
+
   @override
   Widget build(BuildContext context) {
+    // No auth required in LAN mode - show content directly
+    if (!AppConfig.requiresAuth) {
+      return _buildScaffold(context);
+    }
+
+    // Watch auth state (works for both web and mobile)
+    final authAsync = ref.watch(authProvider);
+
+    return authAsync.when(
+      data: (authState) {
+        if (authState.isAuthenticated) {
+          // Authenticated - show the app
+          _authInitiated = false; // Reset for next time
+          return _buildScaffold(context);
+        }
+
+        // On web, NPM handles auth - if we're here without auth, something is wrong
+        // (NPM should have redirected to Authentik before we loaded)
+        if (kIsWeb) {
+          return _buildAuthErrorScreen(context, 'Authentication required');
+        }
+
+        // Mobile: Not authenticated - auto-initiate OIDC
+        if (!_authInitiated) {
+          _authInitiated = true;
+          WidgetsBinding.instance.addPostFrameCallback((_) {
+            ref.read(authProvider.notifier).signIn();
+          });
+        }
+
+        // Show loading while redirecting to Authentik
+        return _buildAuthLoadingScreen(context, 'Redirecting to sign in...');
+      },
+      loading: () => _buildAuthLoadingScreen(context, 'Loading user info...'),
+      error: (error, _) => _buildAuthErrorScreen(context, error),
+    );
+  }
+
+  Widget _buildScaffold(BuildContext context) {
     return Scaffold(
       body: Stack(
         children: [
@@ -32,7 +87,7 @@ class AppScaffold extends StatelessWidget {
           Positioned.fill(
             child: Padding(
               padding: const EdgeInsets.only(top: _headerHeight),
-              child: child,
+              child: widget.child,
             ),
           ),
 
@@ -51,6 +106,115 @@ class AppScaffold extends StatelessWidget {
     );
   }
 
+  Widget _buildAuthLoadingScreen(BuildContext context, String message) {
+    final colorScheme = Theme.of(context).colorScheme;
+
+    return Scaffold(
+      body: Center(
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Icon(
+              Icons.home_work_outlined,
+              size: 64,
+              color: colorScheme.primary,
+            ),
+            const SizedBox(height: 24),
+            Text(
+              'Tatlock Estate',
+              style: Theme.of(context).textTheme.headlineMedium?.copyWith(
+                    fontWeight: FontWeight.w600,
+                  ),
+            ),
+            const SizedBox(height: 32),
+            const SizedBox(
+              width: 24,
+              height: 24,
+              child: CircularProgressIndicator(strokeWidth: 2),
+            ),
+            const SizedBox(height: 16),
+            Text(
+              message,
+              style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                    color: colorScheme.onSurfaceVariant,
+                  ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildAuthErrorScreen(BuildContext context, Object error) {
+    final colorScheme = Theme.of(context).colorScheme;
+
+    return Scaffold(
+      body: Center(
+        child: ConstrainedBox(
+          constraints: const BoxConstraints(maxWidth: 400),
+          child: Card(
+            child: Padding(
+              padding: const EdgeInsets.all(32),
+              child: Column(
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  Icon(
+                    Icons.error_outline,
+                    size: 64,
+                    color: colorScheme.error,
+                  ),
+                  const SizedBox(height: 24),
+                  Text(
+                    'Authentication Failed',
+                    style: Theme.of(context).textTheme.headlineMedium?.copyWith(
+                          fontWeight: FontWeight.w600,
+                        ),
+                  ),
+                  const SizedBox(height: 16),
+                  Container(
+                    padding: const EdgeInsets.all(12),
+                    decoration: BoxDecoration(
+                      color: colorScheme.errorContainer,
+                      borderRadius: BorderRadius.circular(8),
+                    ),
+                    child: Text(
+                      _formatError(error),
+                      style: TextStyle(color: colorScheme.onErrorContainer),
+                      textAlign: TextAlign.center,
+                    ),
+                  ),
+                  const SizedBox(height: 24),
+                  FilledButton.icon(
+                    onPressed: () {
+                      _authInitiated = false;
+                      ref.read(authProvider.notifier).signIn();
+                    },
+                    icon: const Icon(Icons.refresh),
+                    label: const Text('Try again'),
+                    style: FilledButton.styleFrom(
+                      minimumSize: const Size(double.infinity, 48),
+                    ),
+                  ),
+                ],
+              ),
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+
+  String _formatError(Object error) {
+    final message = error.toString();
+    if (message.contains('user_cancelled')) {
+      return 'Sign in was cancelled';
+    }
+    if (message.contains('network')) {
+      return 'Network error. Please check your connection.';
+    }
+    return 'Authentication failed. Please try again.';
+  }
+
   int _selectedIndex(BuildContext context) {
     final location = GoRouterState.of(context).matchedLocation;
 

lib/shared/theme/stoplight_colors.dart

@@ -0,0 +1,37 @@
+import 'package:flutter/material.dart';
+
+/// Pastel stoplight colors for consistent status indication across the app.
+///
+/// Use these colors for any green/yellow/red status flows:
+/// - System stats (CPU, RAM, disk usage)
+/// - Air quality levels
+/// - Container health status
+/// - Any other threshold-based indicators
+abstract final class StoplightColors {
+  /// Good/healthy/low usage (0-50%)
+  static const green = Color(0xFF81C784);
+
+  /// Warning/moderate/medium usage (51-75%)
+  static const orange = Color(0xFFFFB74D);
+
+  /// Critical/unhealthy/high usage (76-100%)
+  static const red = Color(0xFFE57373);
+
+  /// Returns appropriate color based on percentage (0-100).
+  ///
+  /// - ≤50%: green
+  /// - 51-75%: orange
+  /// - >75%: red
+  static Color forPercent(double percent) {
+    if (percent <= 50) return green;
+    if (percent <= 75) return orange;
+    return red;
+  }
+
+  /// Returns appropriate color based on value (0.0-1.0).
+  ///
+  /// - ≤0.5: green
+  /// - 0.51-0.75: orange
+  /// - >0.75: red
+  static Color forValue(double value) => forPercent(value * 100);
+}

lib/shared/widgets/air_quality_widget.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:tatlock_ui/shared/theme/stoplight_colors.dart';
 
 /// Air Quality Index widget displaying current AQI.
 ///
@@ -203,28 +204,28 @@ enum AqiLevel {
   good(
     label: 'Good',
     description: 'Air quality is satisfactory',
-    color: Colors.green,
+    color: StoplightColors.green,
     minIndex: 0,
     maxIndex: 50,
   ),
   moderate(
     label: 'Moderate',
     description: 'Acceptable for most people',
-    color: Colors.amber,
+    color: StoplightColors.orange,
     minIndex: 51,
     maxIndex: 100,
   ),
   unhealthySensitive(
     label: 'Unhealthy for Sensitive',
     description: 'May affect sensitive groups',
-    color: Colors.orange,
+    color: StoplightColors.orange,
     minIndex: 101,
     maxIndex: 150,
   ),
   unhealthy(
     label: 'Unhealthy',
     description: 'Health effects for everyone',
-    color: Colors.red,
+    color: StoplightColors.red,
     minIndex: 151,
     maxIndex: 200,
   ),

lib/shared/widgets/gauge_widget.dart

@@ -2,7 +2,7 @@ import 'dart:math' as math;
 
 import 'package:flutter/material.dart';
 
-/// A circular gauge widget for displaying percentage values.
+/// A speedometer-style gauge widget for displaying percentage values.
 ///
 /// Commonly used for system stats like CPU, Memory, Disk usage.
 class GaugeWidget extends StatelessWidget {
@@ -52,15 +52,19 @@ class GaugeWidget extends StatelessWidget {
     // Clamp value between 0 and 1
     final clampedValue = value.clamp(0.0, 1.0);
 
+    // Height is smaller since we only draw half circle
+    final gaugeHeight = size * 0.6;
+    final iconSpace = icon != null ? size * 0.36 : 0.0;
+
     return SizedBox(
       width: size,
-      height: size + 24, // Extra space for label
+      height: gaugeHeight + 32 + iconSpace, // Space for label + icon
       child: Column(
         mainAxisSize: MainAxisSize.min,
         children: [
           SizedBox(
             width: size,
-            height: size,
+            height: gaugeHeight,
             child: CustomPaint(
               painter: _GaugePainter(
                 value: clampedValue,
@@ -68,32 +72,21 @@ class GaugeWidget extends StatelessWidget {
                 backgroundColor: effectiveBackgroundColor,
                 strokeWidth: strokeWidth,
               ),
-              child: Center(
-                child: Column(
-                  mainAxisSize: MainAxisSize.min,
-                  children: [
-                    if (icon != null) ...[
-                      Icon(
-                        icon,
-                        size: size * 0.2,
-                        color: effectiveColor,
-                      ),
-                      SizedBox(height: size * 0.02),
-                    ],
-                    if (showPercentage)
-                      Text(
+              child: Align(
+                alignment: const Alignment(0, 0.6),
+                child: showPercentage
+                    ? Text(
                         '${(clampedValue * 100).round()}%',
                         style: Theme.of(context).textTheme.titleLarge?.copyWith(
                               fontWeight: FontWeight.bold,
-                              fontSize: size * 0.18,
+                              fontSize: size * 0.2,
                             ),
-                      ),
-                  ],
-                ),
+                      )
+                    : const SizedBox.shrink(),
               ),
             ),
           ),
-          const SizedBox(height: 8),
+          const SizedBox(height: 4),
           Text(
             label,
             style: Theme.of(context).textTheme.bodySmall?.copyWith(
@@ -103,6 +96,14 @@ class GaugeWidget extends StatelessWidget {
             maxLines: 1,
             overflow: TextOverflow.ellipsis,
           ),
+          if (icon != null) ...[
+            const SizedBox(height: 8),
+            Icon(
+              icon,
+              size: size * 0.28,
+              color: effectiveColor,
+            ),
+          ],
         ],
       ),
     );
@@ -124,12 +125,13 @@ class _GaugePainter extends CustomPainter {
 
   @override
   void paint(Canvas canvas, Size size) {
-    final center = Offset(size.width / 2, size.height / 2);
+    // Center at bottom of widget for speedometer style
+    final center = Offset(size.width / 2, size.height);
     final radius = (size.width - strokeWidth) / 2;
 
-    // Start from top (-90 degrees) and sweep clockwise
-    const startAngle = -math.pi / 2;
-    const sweepAngle = 2 * math.pi;
+    // Speedometer arc: starts from left (180°) and sweeps 180° to right
+    const startAngle = math.pi; // 180 degrees (left side)
+    const sweepAngle = math.pi; // 180 degrees sweep (semicircle)
 
     // Background arc
     final backgroundPaint = Paint()
@@ -187,7 +189,7 @@ class GaugeRow extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Wrap(
-      spacing: 16,
+      spacing: 24,
       runSpacing: 16,
       alignment: WrapAlignment.center,
       children: gauges
@@ -196,6 +198,7 @@ class GaugeRow extends StatelessWidget {
               value: data.value,
               label: data.label,
               size: gaugeSize,
+              strokeWidth: gaugeSize * 0.1,
               color: data.color,
               icon: data.icon,
             ),

lib/shared/widgets/weather_widget.dart

@@ -36,15 +36,15 @@ class WeatherWidget extends StatelessWidget {
             Row(
               children: [
                 Icon(
-                  Icons.location_on,
-                  size: 16,
+                  Icons.wb_sunny_outlined,
+                  size: 20,
                   color: colorScheme.onSurfaceVariant,
                 ),
-                const SizedBox(width: 4),
+                const SizedBox(width: 8),
                 Expanded(
                   child: Text(
                     weather.location,
-                    style: Theme.of(context).textTheme.bodySmall?.copyWith(
+                    style: Theme.of(context).textTheme.titleSmall?.copyWith(
                           color: colorScheme.onSurfaceVariant,
                         ),
                     maxLines: 1,
@@ -53,18 +53,36 @@ class WeatherWidget extends StatelessWidget {
                 ),
               ],
             ),
-            const SizedBox(height: 12),
+            const SizedBox(height: 16),
 
-            // Main weather display
+            // Main weather display (matching AQI layout)
             Row(
-              crossAxisAlignment: CrossAxisAlignment.start,
               children: [
-                Icon(
-                  weather.icon,
-                  size: 48,
-                  color: weather.iconColor ?? colorScheme.primary,
+                // Weather icon in box (like AQI number box)
+                Container(
+                  width: 64,
+                  height: 64,
+                  decoration: BoxDecoration(
+                    color: (weather.iconColor ?? colorScheme.primary)
+                        .withValues(alpha: 0.15),
+                    borderRadius: BorderRadius.circular(12),
+                    border: Border.all(
+                      color: (weather.iconColor ?? colorScheme.primary)
+                          .withValues(alpha: 0.3),
+                      width: 2,
+                    ),
+                  ),
+                  child: Center(
+                    child: Icon(
+                      weather.icon,
+                      size: 32,
+                      color: weather.iconColor ?? colorScheme.primary,
+                    ),
+                  ),
                 ),
-                const SizedBox(width: 12),
+                const SizedBox(width: 16),
+
+                // Temperature and condition
                 Expanded(
                   child: Column(
                     crossAxisAlignment: CrossAxisAlignment.start,
@@ -72,15 +90,18 @@ class WeatherWidget extends StatelessWidget {
                       Text(
                         '${weather.temperature.round()}°${weather.unit.symbol}',
                         style:
-                            Theme.of(context).textTheme.headlineMedium?.copyWith(
-                                  fontWeight: FontWeight.bold,
+                            Theme.of(context).textTheme.titleMedium?.copyWith(
+                                  fontWeight: FontWeight.w600,
                                 ),
                       ),
+                      const SizedBox(height: 4),
                       Text(
                         weather.condition,
-                        style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                        style: Theme.of(context).textTheme.bodySmall?.copyWith(
                               color: colorScheme.onSurfaceVariant,
                             ),
+                        maxLines: 2,
+                        overflow: TextOverflow.ellipsis,
                       ),
                     ],
                   ),
@@ -90,36 +111,27 @@ class WeatherWidget extends StatelessWidget {
 
             // Details
             if (weather.humidity != null || weather.windSpeed != null) ...[
-              const SizedBox(height: 12),
+              const SizedBox(height: 16),
               const Divider(height: 1),
               const SizedBox(height: 12),
-              Row(
+              Wrap(
+                spacing: 16,
+                runSpacing: 8,
                 children: [
                   if (weather.humidity != null)
-                    Expanded(
-                      child: _DetailItem(
-                        icon: Icons.water_drop_outlined,
-                        label: 'Humidity',
-                        value: '${weather.humidity}%',
-                      ),
+                    _DetailChip(
+                      label: 'Humidity',
+                      value: '${weather.humidity}%',
                     ),
                   if (weather.windSpeed != null)
-                    Expanded(
-                      child: _DetailItem(
-                        icon: Icons.air,
-                        label: 'Wind',
-                        value:
-                            '${weather.windSpeed!.round()} ${weather.windUnit}',
-                      ),
+                    _DetailChip(
+                      label: 'Wind',
+                      value: '${weather.windSpeed!.round()} ${weather.windUnit}',
                     ),
                   if (weather.feelsLike != null)
-                    Expanded(
-                      child: _DetailItem(
-                        icon: Icons.thermostat,
-                        label: 'Feels like',
-                        value:
-                            '${weather.feelsLike!.round()}°${weather.unit.symbol}',
-                      ),
+                    _DetailChip(
+                      label: 'Feels',
+                      value: '${weather.feelsLike!.round()}°${weather.unit.symbol}',
                     ),
                 ],
               ),
@@ -160,14 +172,12 @@ class WeatherWidget extends StatelessWidget {
   }
 }
 
-class _DetailItem extends StatelessWidget {
-  const _DetailItem({
-    required this.icon,
+class _DetailChip extends StatelessWidget {
+  const _DetailChip({
     required this.label,
     required this.value,
   });
 
-  final IconData icon;
   final String label;
   final String value;
 
@@ -178,29 +188,18 @@ class _DetailItem extends StatelessWidget {
     return Row(
       mainAxisSize: MainAxisSize.min,
       children: [
-        Icon(
-          icon,
-          size: 16,
-          color: colorScheme.onSurfaceVariant,
+        Text(
+          label,
+          style: Theme.of(context).textTheme.labelSmall?.copyWith(
+                color: colorScheme.outline,
+              ),
         ),
         const SizedBox(width: 4),
-        Column(
-          crossAxisAlignment: CrossAxisAlignment.start,
-          children: [
-            Text(
-              value,
-              style: Theme.of(context).textTheme.bodySmall?.copyWith(
-                    fontWeight: FontWeight.w600,
-                  ),
-            ),
-            Text(
-              label,
-              style: Theme.of(context).textTheme.labelSmall?.copyWith(
-                    color: colorScheme.outline,
-                    fontSize: 10,
-                  ),
-            ),
-          ],
+        Text(
+          value,
+          style: Theme.of(context).textTheme.bodySmall?.copyWith(
+                fontWeight: FontWeight.w500,
+              ),
         ),
       ],
     );

lib/version.g.dart

@@ -1,13 +0,0 @@
-// GENERATED FILE - DO NOT EDIT
-// Generated by build_runner from pubspec.yaml
-
-/// Application version information from pubspec.yaml
-class AppVersion {
-  AppVersion._();
-
-  static const String name = 'tatlock_ui';
-  static const String description = 'Tatlock - a Home Lab AI';
-  static const String version = '0.3.3';
-  static const int buildNumber = 1;
-  static const String fullVersion = '0.3.3+1';
-}

npm-config.conf

@@ -0,0 +1,53 @@
+# Increase buffer size for large headers from Authentik
+proxy_buffers 8 16k;
+proxy_buffer_size 32k;
+
+# Exclude static assets from forward auth
+# These paths bypass auth_request but still proxy to upstream
+location ~ ^/(manifest\.json|favicon\.(ico|png)|health|icons|assets) {
+    auth_request off;
+    proxy_pass $forward_scheme://$server:$port;
+}
+
+# Forward authentication via standalone outpost
+auth_request /outpost.goauthentik.io/auth/nginx;
+error_page 401 = @goauthentik_proxy_signin;
+
+# Capture auth response headers
+auth_request_set $auth_cookie $upstream_http_set_cookie;
+auth_request_set $authentik_username $upstream_http_x_authentik_username;
+auth_request_set $authentik_groups $upstream_http_x_authentik_groups;
+auth_request_set $authentik_email $upstream_http_x_authentik_email;
+auth_request_set $authentik_name $upstream_http_x_authentik_name;
+auth_request_set $authentik_uid $upstream_http_x_authentik_uid;
+
+# Forward auth headers to application
+add_header Set-Cookie $auth_cookie;
+proxy_set_header X-authentik-username $authentik_username;
+proxy_set_header X-authentik-groups $authentik_groups;
+proxy_set_header X-authentik-email $authentik_email;
+proxy_set_header X-authentik-name $authentik_name;
+proxy_set_header X-authentik-uid $authentik_uid;
+
+# Outpost proxy location
+location /outpost.goauthentik.io {
+    proxy_pass https://localhost:9444/outpost.goauthentik.io;
+    proxy_set_header Host $host;
+    proxy_set_header X-Original-URL $scheme://$http_host$request_uri;
+    proxy_set_header X-Forwarded-Proto $scheme;
+    proxy_set_header X-Forwarded-Host $http_host;
+    proxy_set_header X-Forwarded-For $remote_addr;
+    proxy_pass_request_body off;
+    proxy_set_header Content-Length "";
+
+    # WebSocket support
+    proxy_http_version 1.1;
+    proxy_set_header Upgrade $http_upgrade;
+    proxy_set_header Connection $connection_upgrade;
+}
+
+# Signin redirect handler
+location @goauthentik_proxy_signin {
+    internal;
+    return 302 /outpost.goauthentik.io/start?rd=$request_uri;
+}

pubspec.yaml

@@ -16,7 +16,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 0.3.3+1
+version: 1.1.11+1
 
 environment:
   sdk: ^3.10.4
@@ -30,6 +30,8 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
+  flutter_web_plugins:
+    sdk: flutter
 
   # State Management
   flutter_riverpod: ^3.0.0
@@ -50,6 +52,11 @@ dependencies:
   # Storage
   shared_preferences: ^2.3.3
 
+  # Authentication (OIDC/OAuth2)
+  flutter_appauth: ^8.0.0
+  crypto: ^3.0.3
+  web: ^1.1.0
+
   # UI
   flex_color_scheme: ^8.1.0
   flutter_adaptive_scaffold: ^0.3.1
@@ -64,6 +71,7 @@ dependencies:
   url_launcher: ^6.3.1
   flutter_code_editor: ^0.3.5
   highlight: ^0.7.0
+  dio_web_adapter: ^2.1.1
 
 dev_dependencies:
   flutter_test:

test/core/auth/auth_state_test.dart

@@ -0,0 +1,280 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:tatlock_ui/core/auth/auth_state.dart';
+import 'package:tatlock_ui/core/auth/permissions.dart';
+import 'package:tatlock_ui/core/auth/user_preferences.dart';
+
+void main() {
+  group('AuthState', () {
+    group('default constructor', () {
+      test('creates unauthenticated state by default', () {
+        const state = AuthState();
+
+        expect(state.isAuthenticated, isFalse);
+        expect(state.accessToken, isNull);
+        expect(state.refreshToken, isNull);
+        expect(state.expiresAt, isNull);
+        expect(state.userId, isNull);
+        expect(state.userName, isNull);
+        expect(state.userEmail, isNull);
+        expect(state.roles, isEmpty);
+        expect(state.preferences, isNull);
+      });
+    });
+
+    group('authenticated state', () {
+      test('stores all user data', () {
+        final expiresAt = DateTime.now().add(const Duration(hours: 1));
+        const preferences = UserPreferences(
+          theme: 'dark',
+          defaultRoom: 'kitchen',
+        );
+
+        final state = AuthState(
+          isAuthenticated: true,
+          accessToken: 'access_token',
+          refreshToken: 'refresh_token',
+          expiresAt: expiresAt,
+          userId: 'user-123',
+          authentikId: 'authentik-456',
+          userName: 'Test User',
+          userEmail: 'test@example.com',
+          avatarUrl: 'https://example.com/avatar.jpg',
+          roles: const [
+            Role(
+              id: '1',
+              name: 'admin.general:admin',
+              domain: Domain.admin,
+              category: 'general',
+              action: Action.admin,
+            ),
+          ],
+          preferences: preferences,
+        );
+
+        expect(state.isAuthenticated, isTrue);
+        expect(state.accessToken, equals('access_token'));
+        expect(state.refreshToken, equals('refresh_token'));
+        expect(state.expiresAt, equals(expiresAt));
+        expect(state.userId, equals('user-123'));
+        expect(state.authentikId, equals('authentik-456'));
+        expect(state.userName, equals('Test User'));
+        expect(state.userEmail, equals('test@example.com'));
+        expect(state.avatarUrl, equals('https://example.com/avatar.jpg'));
+        expect(state.roles.length, equals(1));
+        expect(state.preferences?.theme, equals('dark'));
+      });
+    });
+
+    group('isTokenExpired', () {
+      test('returns true when expiresAt is null', () {
+        const state = AuthState(isAuthenticated: true);
+
+        expect(state.isTokenExpired, isTrue);
+      });
+
+      test('returns true when token is expired', () {
+        final expiredTime = DateTime.now().subtract(const Duration(hours: 1));
+        final state = AuthState(
+          isAuthenticated: true,
+          expiresAt: expiredTime,
+        );
+
+        expect(state.isTokenExpired, isTrue);
+      });
+
+      test('returns true when token expires within 1 minute', () {
+        final soonExpires = DateTime.now().add(const Duration(seconds: 30));
+        final state = AuthState(
+          isAuthenticated: true,
+          expiresAt: soonExpires,
+        );
+
+        expect(state.isTokenExpired, isTrue);
+      });
+
+      test('returns false when token is valid', () {
+        final futureExpires = DateTime.now().add(const Duration(hours: 1));
+        final state = AuthState(
+          isAuthenticated: true,
+          expiresAt: futureExpires,
+        );
+
+        expect(state.isTokenExpired, isFalse);
+      });
+    });
+
+    group('hasPermission', () {
+      test('returns true when role grants permission', () {
+        const state = AuthState(
+          isAuthenticated: true,
+          roles: [
+            Role(
+              id: '1',
+              name: 'control-room.general:admin',
+              domain: Domain.controlRoom,
+              category: 'general',
+              action: Action.admin,
+            ),
+          ],
+        );
+
+        expect(state.hasPermission(Domain.controlRoom, Action.admin), isTrue);
+        expect(state.hasPermission(Domain.controlRoom, Action.viewer), isTrue);
+      });
+
+      test('returns false when no role grants permission', () {
+        const state = AuthState(
+          isAuthenticated: true,
+          roles: [
+            Role(
+              id: '1',
+              name: 'media.general:viewer',
+              domain: Domain.media,
+              category: 'general',
+              action: Action.viewer,
+            ),
+          ],
+        );
+
+        expect(state.hasPermission(Domain.controlRoom, Action.viewer), isFalse);
+        expect(state.hasPermission(Domain.media, Action.admin), isFalse);
+      });
+
+      test('respects category parameter', () {
+        const state = AuthState(
+          isAuthenticated: true,
+          roles: [
+            Role(
+              id: '1',
+              name: 'control-room.servers:admin',
+              domain: Domain.controlRoom,
+              category: 'servers',
+              action: Action.admin,
+            ),
+          ],
+        );
+
+        expect(
+          state.hasPermission(
+            Domain.controlRoom,
+            Action.admin,
+            category: 'servers',
+          ),
+          isTrue,
+        );
+        expect(
+          state.hasPermission(
+            Domain.controlRoom,
+            Action.admin,
+            category: 'general',
+          ),
+          isFalse,
+        );
+      });
+
+      test('returns false for empty roles list', () {
+        const state = AuthState(isAuthenticated: true, roles: []);
+
+        expect(state.hasPermission(Domain.controlRoom, Action.viewer), isFalse);
+      });
+    });
+
+    group('isGlobalAdmin', () {
+      test('returns true when user has admin.general:admin role', () {
+        const state = AuthState(
+          isAuthenticated: true,
+          roles: [
+            Role(
+              id: '1',
+              name: 'admin.general:admin',
+              domain: Domain.admin,
+              category: 'general',
+              action: Action.admin,
+            ),
+          ],
+        );
+
+        expect(state.isGlobalAdmin, isTrue);
+      });
+
+      test('returns false when user lacks admin role', () {
+        const state = AuthState(
+          isAuthenticated: true,
+          roles: [
+            Role(
+              id: '1',
+              name: 'control-room.general:admin',
+              domain: Domain.controlRoom,
+              category: 'general',
+              action: Action.admin,
+            ),
+          ],
+        );
+
+        expect(state.isGlobalAdmin, isFalse);
+      });
+
+      test('returns false for empty roles list', () {
+        const state = AuthState(isAuthenticated: true, roles: []);
+
+        expect(state.isGlobalAdmin, isFalse);
+      });
+    });
+
+    group('copyWith', () {
+      test('creates a copy with modified values', () {
+        const original = AuthState(
+          isAuthenticated: true,
+          accessToken: 'old_token',
+          userName: 'Original User',
+        );
+
+        final updated = original.copyWith(
+          accessToken: 'new_token',
+          userName: 'Updated User',
+        );
+
+        // Original unchanged
+        expect(original.accessToken, equals('old_token'));
+        expect(original.userName, equals('Original User'));
+
+        // Updated has new values
+        expect(updated.accessToken, equals('new_token'));
+        expect(updated.userName, equals('Updated User'));
+
+        // Preserved unchanged values
+        expect(updated.isAuthenticated, equals(original.isAuthenticated));
+      });
+    });
+
+    group('equality', () {
+      test('two identical states are equal', () {
+        const state1 = AuthState(
+          isAuthenticated: true,
+          userId: 'user-123',
+          userName: 'Test User',
+        );
+        const state2 = AuthState(
+          isAuthenticated: true,
+          userId: 'user-123',
+          userName: 'Test User',
+        );
+
+        expect(state1, equals(state2));
+      });
+
+      test('different states are not equal', () {
+        const state1 = AuthState(
+          isAuthenticated: true,
+          userId: 'user-123',
+        );
+        const state2 = AuthState(
+          isAuthenticated: true,
+          userId: 'user-456',
+        );
+
+        expect(state1, isNot(equals(state2)));
+      });
+    });
+  });
+}

test/core/auth/permission_gate_test.dart

@@ -0,0 +1,172 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:tatlock_ui/core/auth/auth_state.dart';
+import 'package:tatlock_ui/core/auth/permissions.dart';
+
+// Note: PermissionGate widget tests require complex provider mocking.
+// These unit tests verify the permission logic that PermissionGate relies on.
+// Widget integration tests should be done with a running app or container testing.
+
+void main() {
+  group('PermissionGate logic', () {
+    test('hasPermission returns true when role grants permission', () {
+      final state = AuthState(
+        isAuthenticated: true,
+        roles: const [
+          Role(
+            id: '1',
+            name: 'control-room.general:admin',
+            domain: Domain.controlRoom,
+            category: 'general',
+            action: Action.admin,
+          ),
+        ],
+      );
+
+      expect(state.hasPermission(Domain.controlRoom, Action.admin), isTrue);
+      expect(state.hasPermission(Domain.controlRoom, Action.viewer), isTrue);
+    });
+
+    test('hasPermission returns false when role does not grant permission', () {
+      final state = AuthState(
+        isAuthenticated: true,
+        roles: const [
+          Role(
+            id: '1',
+            name: 'media.general:viewer',
+            domain: Domain.media,
+            category: 'general',
+            action: Action.viewer,
+          ),
+        ],
+      );
+
+      expect(state.hasPermission(Domain.controlRoom, Action.admin), isFalse);
+      expect(state.hasPermission(Domain.media, Action.admin), isFalse);
+    });
+
+    test('hasPermission returns false when not authenticated', () {
+      const state = AuthState(isAuthenticated: false);
+
+      expect(state.hasPermission(Domain.controlRoom, Action.viewer), isFalse);
+    });
+
+    test('hasPermission respects category', () {
+      final state = AuthState(
+        isAuthenticated: true,
+        roles: const [
+          Role(
+            id: '1',
+            name: 'control-room.servers:admin',
+            domain: Domain.controlRoom,
+            category: 'servers',
+            action: Action.admin,
+          ),
+        ],
+      );
+
+      expect(
+        state.hasPermission(Domain.controlRoom, Action.admin, category: 'servers'),
+        isTrue,
+      );
+      expect(
+        state.hasPermission(Domain.controlRoom, Action.admin, category: 'general'),
+        isFalse,
+      );
+    });
+
+    test('isGlobalAdmin returns true for admin.general:admin role', () {
+      final state = AuthState(
+        isAuthenticated: true,
+        roles: const [
+          Role(
+            id: '1',
+            name: 'admin.general:admin',
+            domain: Domain.admin,
+            category: 'general',
+            action: Action.admin,
+          ),
+        ],
+      );
+
+      expect(state.isGlobalAdmin, isTrue);
+    });
+
+    test('isGlobalAdmin returns false for non-admin roles', () {
+      final state = AuthState(
+        isAuthenticated: true,
+        roles: const [
+          Role(
+            id: '1',
+            name: 'control-room.general:admin',
+            domain: Domain.controlRoom,
+            category: 'general',
+            action: Action.admin,
+          ),
+        ],
+      );
+
+      expect(state.isGlobalAdmin, isFalse);
+    });
+
+    test('global admin has access to all domains', () {
+      final state = AuthState(
+        isAuthenticated: true,
+        roles: const [
+          Role(
+            id: '1',
+            name: 'admin.general:admin',
+            domain: Domain.admin,
+            category: 'general',
+            action: Action.admin,
+          ),
+        ],
+      );
+
+      // Global admin should have access to everything
+      expect(state.hasPermission(Domain.controlRoom, Action.admin), isTrue);
+      expect(state.hasPermission(Domain.media, Action.editor), isTrue);
+      expect(state.hasPermission(Domain.library, Action.viewer), isTrue);
+      expect(
+        state.hasPermission(Domain.documents, Action.user, category: 'custom'),
+        isTrue,
+      );
+    });
+
+    test('empty roles list denies all permissions', () {
+      const state = AuthState(isAuthenticated: true, roles: []);
+
+      expect(state.hasPermission(Domain.controlRoom, Action.viewer), isFalse);
+      expect(state.isGlobalAdmin, isFalse);
+    });
+
+    test('multiple roles are evaluated correctly', () {
+      final state = AuthState(
+        isAuthenticated: true,
+        roles: const [
+          Role(
+            id: '1',
+            name: 'media.general:viewer',
+            domain: Domain.media,
+            category: 'general',
+            action: Action.viewer,
+          ),
+          Role(
+            id: '2',
+            name: 'control-room.general:admin',
+            domain: Domain.controlRoom,
+            category: 'general',
+            action: Action.admin,
+          ),
+        ],
+      );
+
+      // Should have permissions from both roles
+      expect(state.hasPermission(Domain.media, Action.viewer), isTrue);
+      expect(state.hasPermission(Domain.controlRoom, Action.admin), isTrue);
+
+      // But not permissions not granted by any role
+      expect(state.hasPermission(Domain.media, Action.admin), isFalse);
+      expect(state.hasPermission(Domain.library, Action.viewer), isFalse);
+    });
+  });
+}

test/core/auth/permissions_test.dart

@@ -0,0 +1,283 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:tatlock_ui/core/auth/permissions.dart';
+
+void main() {
+  group('Domain', () {
+    group('fromString', () {
+      test('parses valid domain strings', () {
+        expect(Domain.fromString('control-room'), equals(Domain.controlRoom));
+        expect(Domain.fromString('library'), equals(Domain.library));
+        expect(Domain.fromString('media'), equals(Domain.media));
+        expect(Domain.fromString('ai'), equals(Domain.ai));
+        expect(Domain.fromString('housekeeper'), equals(Domain.housekeeper));
+        expect(Domain.fromString('developer'), equals(Domain.developer));
+        expect(Domain.fromString('documents'), equals(Domain.documents));
+        expect(Domain.fromString('gaming'), equals(Domain.gaming));
+        expect(Domain.fromString('admin'), equals(Domain.admin));
+      });
+
+      test('returns null for invalid domain', () {
+        expect(Domain.fromString('invalid'), isNull);
+        expect(Domain.fromString(''), isNull);
+        expect(Domain.fromString('CONTROL-ROOM'), isNull);
+      });
+    });
+
+    test('value returns correct string', () {
+      expect(Domain.controlRoom.value, equals('control-room'));
+      expect(Domain.library.value, equals('library'));
+      expect(Domain.admin.value, equals('admin'));
+    });
+  });
+
+  group('Action', () {
+    group('fromString', () {
+      test('parses valid action strings', () {
+        expect(Action.fromString('viewer'), equals(Action.viewer));
+        expect(Action.fromString('user'), equals(Action.user));
+        expect(Action.fromString('editor'), equals(Action.editor));
+        expect(Action.fromString('admin'), equals(Action.admin));
+      });
+
+      test('returns null for invalid action', () {
+        expect(Action.fromString('invalid'), isNull);
+        expect(Action.fromString(''), isNull);
+        expect(Action.fromString('ADMIN'), isNull);
+      });
+    });
+
+    group('level', () {
+      test('has correct hierarchy levels', () {
+        expect(Action.viewer.level, equals(1));
+        expect(Action.user.level, equals(2));
+        expect(Action.editor.level, equals(3));
+        expect(Action.admin.level, equals(4));
+      });
+
+      test('levels are ordered correctly', () {
+        expect(Action.viewer.level, lessThan(Action.user.level));
+        expect(Action.user.level, lessThan(Action.editor.level));
+        expect(Action.editor.level, lessThan(Action.admin.level));
+      });
+    });
+
+    group('grants', () {
+      test('admin grants all actions', () {
+        expect(Action.admin.grants(Action.admin), isTrue);
+        expect(Action.admin.grants(Action.editor), isTrue);
+        expect(Action.admin.grants(Action.user), isTrue);
+        expect(Action.admin.grants(Action.viewer), isTrue);
+      });
+
+      test('editor grants editor and below', () {
+        expect(Action.editor.grants(Action.admin), isFalse);
+        expect(Action.editor.grants(Action.editor), isTrue);
+        expect(Action.editor.grants(Action.user), isTrue);
+        expect(Action.editor.grants(Action.viewer), isTrue);
+      });
+
+      test('user grants user and below', () {
+        expect(Action.user.grants(Action.admin), isFalse);
+        expect(Action.user.grants(Action.editor), isFalse);
+        expect(Action.user.grants(Action.user), isTrue);
+        expect(Action.user.grants(Action.viewer), isTrue);
+      });
+
+      test('viewer only grants viewer', () {
+        expect(Action.viewer.grants(Action.admin), isFalse);
+        expect(Action.viewer.grants(Action.editor), isFalse);
+        expect(Action.viewer.grants(Action.user), isFalse);
+        expect(Action.viewer.grants(Action.viewer), isTrue);
+      });
+    });
+  });
+
+  group('Role', () {
+    group('grants', () {
+      test('grants permission for matching domain and category', () {
+        const role = Role(
+          id: '1',
+          name: 'control-room.general:admin',
+          domain: Domain.controlRoom,
+          category: 'general',
+          action: Action.admin,
+        );
+
+        expect(role.grants(Domain.controlRoom, Action.admin), isTrue);
+        expect(role.grants(Domain.controlRoom, Action.editor), isTrue);
+        expect(role.grants(Domain.controlRoom, Action.user), isTrue);
+        expect(role.grants(Domain.controlRoom, Action.viewer), isTrue);
+      });
+
+      test('denies permission for different domain', () {
+        const role = Role(
+          id: '1',
+          name: 'control-room.general:admin',
+          domain: Domain.controlRoom,
+          category: 'general',
+          action: Action.admin,
+        );
+
+        expect(role.grants(Domain.media, Action.viewer), isFalse);
+        expect(role.grants(Domain.library, Action.viewer), isFalse);
+      });
+
+      test('denies permission for different category', () {
+        const role = Role(
+          id: '1',
+          name: 'control-room.servers:admin',
+          domain: Domain.controlRoom,
+          category: 'servers',
+          action: Action.admin,
+        );
+
+        expect(
+          role.grants(Domain.controlRoom, Action.admin, category: 'general'),
+          isFalse,
+        );
+        expect(
+          role.grants(Domain.controlRoom, Action.admin, category: 'servers'),
+          isTrue,
+        );
+      });
+
+      test('global admin grants all permissions', () {
+        const globalAdmin = Role(
+          id: '1',
+          name: 'admin.general:admin',
+          domain: Domain.admin,
+          category: 'general',
+          action: Action.admin,
+        );
+
+        // Should grant any domain, category, action
+        expect(globalAdmin.grants(Domain.controlRoom, Action.admin), isTrue);
+        expect(globalAdmin.grants(Domain.media, Action.editor), isTrue);
+        expect(globalAdmin.grants(Domain.library, Action.viewer), isTrue);
+        expect(
+          globalAdmin.grants(Domain.documents, Action.user, category: 'specific'),
+          isTrue,
+        );
+      });
+
+      test('non-global admin role does not grant everything', () {
+        const domainAdmin = Role(
+          id: '1',
+          name: 'admin.specific:admin',
+          domain: Domain.admin,
+          category: 'specific', // Not 'general'
+          action: Action.admin,
+        );
+
+        // Should not grant arbitrary permissions
+        expect(domainAdmin.grants(Domain.controlRoom, Action.viewer), isFalse);
+      });
+    });
+  });
+
+  group('RoleListPermissions extension', () {
+    final roles = [
+      const Role(
+        id: '1',
+        name: 'control-room.general:admin',
+        domain: Domain.controlRoom,
+        category: 'general',
+        action: Action.admin,
+      ),
+      const Role(
+        id: '2',
+        name: 'media.general:viewer',
+        domain: Domain.media,
+        category: 'general',
+        action: Action.viewer,
+      ),
+    ];
+
+    group('hasPermission', () {
+      test('returns true when any role grants permission', () {
+        expect(
+          roles.hasPermission(Domain.controlRoom, Action.admin),
+          isTrue,
+        );
+        expect(
+          roles.hasPermission(Domain.controlRoom, Action.viewer),
+          isTrue,
+        );
+        expect(
+          roles.hasPermission(Domain.media, Action.viewer),
+          isTrue,
+        );
+      });
+
+      test('returns false when no role grants permission', () {
+        expect(
+          roles.hasPermission(Domain.media, Action.editor),
+          isFalse,
+        );
+        expect(
+          roles.hasPermission(Domain.library, Action.viewer),
+          isFalse,
+        );
+      });
+
+      test('returns false for empty role list', () {
+        expect(
+          <Role>[].hasPermission(Domain.controlRoom, Action.viewer),
+          isFalse,
+        );
+      });
+    });
+
+    group('isGlobalAdmin', () {
+      test('returns true when global admin role present', () {
+        final adminRoles = [
+          const Role(
+            id: '1',
+            name: 'admin.general:admin',
+            domain: Domain.admin,
+            category: 'general',
+            action: Action.admin,
+          ),
+        ];
+
+        expect(adminRoles.isGlobalAdmin, isTrue);
+      });
+
+      test('returns false when no global admin role', () {
+        expect(roles.isGlobalAdmin, isFalse);
+      });
+
+      test('returns false for empty role list', () {
+        expect(<Role>[].isGlobalAdmin, isFalse);
+      });
+
+      test('returns false for admin domain with non-general category', () {
+        final limitedAdmin = [
+          const Role(
+            id: '1',
+            name: 'admin.specific:admin',
+            domain: Domain.admin,
+            category: 'specific',
+            action: Action.admin,
+          ),
+        ];
+
+        expect(limitedAdmin.isGlobalAdmin, isFalse);
+      });
+
+      test('returns false for admin domain with non-admin action', () {
+        final viewerAdmin = [
+          const Role(
+            id: '1',
+            name: 'admin.general:viewer',
+            domain: Domain.admin,
+            category: 'general',
+            action: Action.viewer,
+          ),
+        ];
+
+        expect(viewerAdmin.isGlobalAdmin, isFalse);
+      });
+    });
+  });
+}

test/core/auth/user_preferences_test.dart

@@ -0,0 +1,147 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:tatlock_ui/core/auth/user_preferences.dart';
+
+void main() {
+  group('UserPreferences', () {
+    group('default constructor', () {
+      test('creates with default values', () {
+        const prefs = UserPreferences();
+
+        expect(prefs.theme, equals('system'));
+        expect(prefs.defaultRoom, equals('front-hall'));
+        expect(prefs.preferencesJson, isEmpty);
+      });
+    });
+
+    group('custom constructor', () {
+      test('creates with custom values', () {
+        const prefs = UserPreferences(
+          theme: 'dark',
+          defaultRoom: 'kitchen',
+          preferencesJson: {'sidebar_collapsed': true, 'font_size': 14},
+        );
+
+        expect(prefs.theme, equals('dark'));
+        expect(prefs.defaultRoom, equals('kitchen'));
+        expect(prefs.preferencesJson['sidebar_collapsed'], isTrue);
+        expect(prefs.preferencesJson['font_size'], equals(14));
+      });
+    });
+
+    group('fromJson', () {
+      test('deserializes from JSON', () {
+        final json = {
+          'theme': 'light',
+          'defaultRoom': 'living-room',
+          'preferencesJson': {'key': 'value'},
+        };
+
+        final prefs = UserPreferences.fromJson(json);
+
+        expect(prefs.theme, equals('light'));
+        expect(prefs.defaultRoom, equals('living-room'));
+        expect(prefs.preferencesJson['key'], equals('value'));
+      });
+
+      test('uses defaults for missing fields', () {
+        final json = <String, dynamic>{};
+
+        final prefs = UserPreferences.fromJson(json);
+
+        expect(prefs.theme, equals('system'));
+        expect(prefs.defaultRoom, equals('front-hall'));
+        expect(prefs.preferencesJson, isEmpty);
+      });
+
+      test('handles partial JSON', () {
+        final json = {'theme': 'dark'};
+
+        final prefs = UserPreferences.fromJson(json);
+
+        expect(prefs.theme, equals('dark'));
+        expect(prefs.defaultRoom, equals('front-hall'));
+      });
+    });
+
+    group('toJson', () {
+      test('serializes to JSON', () {
+        const prefs = UserPreferences(
+          theme: 'dark',
+          defaultRoom: 'office',
+          preferencesJson: {'notifications': true},
+        );
+
+        final json = prefs.toJson();
+
+        expect(json['theme'], equals('dark'));
+        expect(json['defaultRoom'], equals('office'));
+        expect(json['preferencesJson']['notifications'], isTrue);
+      });
+
+      test('round-trip serialization preserves data', () {
+        const original = UserPreferences(
+          theme: 'light',
+          defaultRoom: 'bedroom',
+          preferencesJson: {'compact_mode': false},
+        );
+
+        final json = original.toJson();
+        final restored = UserPreferences.fromJson(json);
+
+        expect(restored.theme, equals(original.theme));
+        expect(restored.defaultRoom, equals(original.defaultRoom));
+        expect(
+          restored.preferencesJson['compact_mode'],
+          equals(original.preferencesJson['compact_mode']),
+        );
+      });
+    });
+
+    group('copyWith', () {
+      test('creates a copy with modified values', () {
+        const original = UserPreferences(
+          theme: 'system',
+          defaultRoom: 'front-hall',
+        );
+
+        final updated = original.copyWith(theme: 'dark');
+
+        // Original unchanged
+        expect(original.theme, equals('system'));
+
+        // Updated has new value
+        expect(updated.theme, equals('dark'));
+
+        // Preserved unchanged values
+        expect(updated.defaultRoom, equals(original.defaultRoom));
+      });
+    });
+
+    group('equality', () {
+      test('two identical preferences are equal', () {
+        const prefs1 = UserPreferences(theme: 'dark', defaultRoom: 'office');
+        const prefs2 = UserPreferences(theme: 'dark', defaultRoom: 'office');
+
+        expect(prefs1, equals(prefs2));
+      });
+
+      test('different preferences are not equal', () {
+        const prefs1 = UserPreferences(theme: 'dark');
+        const prefs2 = UserPreferences(theme: 'light');
+
+        expect(prefs1, isNot(equals(prefs2)));
+      });
+    });
+
+    group('theme validation', () {
+      test('accepts valid theme values', () {
+        const themes = ['system', 'light', 'dark'];
+
+        for (final theme in themes) {
+          final prefs = UserPreferences(theme: theme);
+          expect(prefs.theme, equals(theme));
+        }
+      });
+    });
+  });
+}

tool/generate_health_json.dart

@@ -0,0 +1,51 @@
+#!/usr/bin/env dart
+// Generates web/health/health.json from pubspec.yaml
+// Run: dart run tool/generate_health_json.dart
+
+// ignore_for_file: avoid_print
+
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:yaml/yaml.dart';
+
+void main() {
+  final pubspecFile = File('pubspec.yaml');
+  if (!pubspecFile.existsSync()) {
+    stderr.writeln('Error: pubspec.yaml not found');
+    exit(1);
+  }
+
+  final pubspecContent = pubspecFile.readAsStringSync();
+  final pubspec = loadYaml(pubspecContent) as YamlMap;
+
+  final name = pubspec['name'] as String;
+  final description = pubspec['description'] as String? ?? '';
+  final versionString = pubspec['version'] as String;
+
+  // Parse version: "1.0.3+1" -> version="1.0.3", buildNumber=1
+  final versionParts = versionString.split('+');
+  final version = versionParts[0];
+  final buildNumber = versionParts.length > 1 ? int.parse(versionParts[1]) : 0;
+
+  final health = {
+    'status': 'healthy',
+    'name': name,
+    'title': description,
+    'version': version,
+    'buildNumber': buildNumber,
+    'fullVersion': '$version+$buildNumber',
+  };
+
+  final healthDir = Directory('web/health');
+  if (!healthDir.existsSync()) {
+    healthDir.createSync(recursive: true);
+  }
+
+  final healthFile = File('web/health/health.json');
+  healthFile.writeAsStringSync(
+    const JsonEncoder.withIndent('  ').convert(health),
+  );
+
+  print('Generated web/health/health.json with version $version+$buildNumber');
+}

web/health.html

@@ -1,7 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-  <title>OK</title>
-</head>
-<body>OK</body>
-</html>

web/health/health.json

@@ -0,0 +1,8 @@
+{
+  "status": "healthy",
+  "name": "tatlock_ui",
+  "title": "Tatlock - a Home Lab AI",
+  "version": "1.0.4",
+  "buildNumber": 1,
+  "fullVersion": "1.0.4+1"
+}

web/health/index.html

@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>Health Check</title>
+  <style>
+    body { font-family: monospace; padding: 20px; background: #1a1a1a; color: #0f0; }
+    .healthy { color: #0f0; }
+    .error { color: #f00; }
+    pre { background: #222; padding: 15px; border-radius: 5px; }
+  </style>
+</head>
+<body>
+  <h1 id="status">Loading...</h1>
+  <pre id="data"></pre>
+  <script>
+    fetch('./health.json')
+      .then(r => r.json())
+      .then(data => {
+        document.getElementById('status').textContent = data.status?.toUpperCase() || 'OK';
+        document.getElementById('status').className = data.status === 'healthy' ? 'healthy' : 'error';
+        document.getElementById('data').textContent = JSON.stringify(data, null, 2);
+      })
+      .catch(err => {
+        document.getElementById('status').textContent = 'ERROR';
+        document.getElementById('status').className = 'error';
+        document.getElementById('data').textContent = err.message;
+      });
+  </script>
+</body>
+</html>

web/index.html

@@ -27,10 +27,18 @@
   <link rel="apple-touch-icon" href="icons/Icon-192.png">
 
   <!-- Favicon -->
+  <link rel="icon" type="image/x-icon" href="favicon.ico"/>
   <link rel="icon" type="image/png" href="favicon.png"/>
 
   <title>Tatlock</title>
   <link rel="manifest" href="manifest.json">
+  <style>
+    body {
+      margin: 0;
+      padding: 0;
+      background-color: #1a1a2e;
+    }
+  </style>
 </head>
 <body>
   <script src="flutter_bootstrap.js" async></script>