remove dissolved daemon, retire ptyc, fix golden cross-platform

Complete three overdue cleanups discovered during macOS health check:

D-56 daemon dissolution: delete bin/clide.dart, DaemonServer,
and orphaned tests (test/cli/, subprocess_test, in_process_test).
Update stale "clide --daemon" references in i18n catalogs, error
messages, editor_commands, CI scripts, and decision records.

ptyc retirement: delete ptyc/ source tree, PtySession, scm_rights.
Remove from Toolchain resolution, ToolCheck gate, backend
serialization, testmode harness, Makefile, CI, and sandbox
entitlements. PTY spawning uses NativePty (Dart FFI forkpty) since
the terminal was absorbed in-tree. D-5 amended.

Golden tests: wire the existing but never-applied clideGoldenConfig
via flutter_test_config.dart. Disable CI goldens (Skia anti-aliasing
differs between macOS/Linux even with Ahem). Keep platform-keyed
goldens only — goldens/linux/ and goldens/macos/ each run on their
own OS.

Test suite: 826 pass, 0 fail on macOS (was 829 pass, 11 fail).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

lib/kernel/src/tool_check.dart

@@ -5,16 +5,14 @@ import 'package:flutter/foundation.dart';
 import '../../src/pty/env.dart';
 
 class ToolCheck extends ChangeNotifier {
-  bool ptycOk = false;
   bool pqlOk = false;
   bool tmuxOk = false;
   bool gitOk = false;
   bool checked = false;
 
-  bool get allOk => ptycOk && pqlOk && tmuxOk && gitOk;
+  bool get allOk => pqlOk && tmuxOk && gitOk;
 
   List<String> get errors => [
-        if (!ptycOk) 'ptyc not found',
         if (!pqlOk) 'pql not found',
         if (!tmuxOk) 'tmux not found',
         if (!gitOk) 'git not found',
@@ -24,12 +22,6 @@ class ToolCheck extends ChangeNotifier {
   static String? workspaceRoot;
 
   Future<void> check() async {
-    final root = workspaceRoot ?? Directory.current.path;
-    ptycOk = File('$root/native/linux-x64/ptyc').existsSync() ||
-        File('$root/native/macos-arm64/ptyc').existsSync() ||
-        File('$root/native/macos-x64/ptyc').existsSync() ||
-        File('$root/ptyc/bin/ptyc').existsSync() ||
-        _existsOnPath('ptyc');
     pqlOk = _existsOnPath('pql');
     tmuxOk = _existsOnPath('tmux');
     gitOk = _existsOnPath('git');