check ptyc/bin/ptyc relative to cwd for status indicator

The tool status indicator now checks the repo-local ptyc binary
before falling back to PATH lookup, matching the resolution logic
in main.dart.

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

lib/builtin/ipc_status/src/status_item.dart

@@ -23,7 +23,8 @@ class _ToolStatusItemState extends State<ToolStatusItem> {
   }
 
   Future<void> _check() async {
-    final ptycResult = await _which('ptyc');
+    final cwd = Directory.current.path;
+    final ptycResult = _exists('$cwd/ptyc/bin/ptyc') || await _which('ptyc');
     final pqlResult = await _which('pql');
     if (!mounted) return;
     setState(() {
@@ -33,6 +34,8 @@ class _ToolStatusItemState extends State<ToolStatusItem> {
     });
   }
 
+  bool _exists(String path) => File(path).existsSync();
+
   Future<bool> _which(String name) async {
     try {
       final r = await Process.run('which', [name]);