chore: initial project setup with documentation

- Add PHILOSOPHY.md with UI vision and principles
- Add README.md with project overview and operational details
- Add AGENTS.md with LLM agent instructions
- Add PLAN.md with implementation roadmap
- Add .gitignore for Flutter project

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

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

.gitignore

@@ -0,0 +1,113 @@
+# Flutter/Dart
+.dart_tool/
+.packages
+build/
+.pub-cache/
+.pub/
+pubspec.lock
+
+# Generated files
+*.g.dart
+*.freezed.dart
+*.gr.dart
+*.mocks.dart
+lib/generated_plugin_registrant.dart
+
+# IDE
+.idea/
+*.iml
+*.ipr
+*.iws
+.vscode/
+*.swp
+*.swo
+*~
+
+# macOS
+.DS_Store
+*.dmg
+*.plist.backup
+
+# Android
+**/android/**/gradle-wrapper.jar
+**/android/.gradle
+**/android/captures/
+**/android/gradlew
+**/android/gradlew.bat
+**/android/local.properties
+**/android/**/GeneratedPluginRegistrant.*
+**/android/key.properties
+*.jks
+
+# iOS/macOS
+**/ios/**/*.mode1v3
+**/ios/**/*.mode2v3
+**/ios/**/*.moved-aside
+**/ios/**/*.pbxuser
+**/ios/**/*.perspectivev3
+**/ios/**/*sync/
+**/ios/**/.sconsign.dblite
+**/ios/**/.tags*
+**/ios/**/.vagrant/
+**/ios/**/DerivedData/
+**/ios/**/Icon?
+**/ios/**/Pods/
+**/ios/**/.symlinks/
+**/ios/**/profile
+**/ios/**/xcuserdata
+**/ios/.generated/
+**/ios/Flutter/.last_build_id
+**/ios/Flutter/App.framework
+**/ios/Flutter/Flutter.framework
+**/ios/Flutter/Flutter.podspec
+**/ios/Flutter/Generated.xcconfig
+**/ios/Flutter/ephemeral
+**/ios/Flutter/flutter_export_environment.sh
+**/ios/ServiceDefinitions.json
+**/ios/Runner/GeneratedPluginRegistrant.*
+
+# macOS specific
+**/macos/Flutter/ephemeral
+**/macos/Flutter/Flutter-Debug.xcconfig
+**/macos/Flutter/Flutter-Release.xcconfig
+**/macos/Flutter/Flutter-Profile.xcconfig
+**/macos/Flutter/GeneratedPluginRegistrant.swift
+**/macos/Pods/
+
+# Linux
+**/linux/flutter/ephemeral
+
+# Windows
+**/windows/flutter/ephemeral
+
+# Web
+**/web/.dart_tool/
+
+# Coverage
+coverage/
+*.lcov
+
+# Test
+.test_coverage.dart
+
+# Logs
+*.log
+
+# Environment
+.env
+.env.*
+!.env.example
+
+# Secrets (never commit)
+secrets/
+*.pem
+*.p12
+*.key
+
+# Temporary files
+*.tmp
+*.temp
+.temp/
+
+# Uploads (reference images, not tracked)
+uploads/