feat(skills): add debounced watcher foundation for phase 2

docs/plans/state.json

@@ -1269,9 +1269,23 @@
       },
       "phase_2_skills_watcher": {
         "priority": "P1",
-        "status": "not_started",
+        "status": "in_progress",
         "description": "Auto-reload skills with chokidar file watcher, configurable debounce",
-        "effort": "3-4 hours"
+        "effort": "3-4 hours",
+        "sub_slices": {
+          "watcher_bootstrap": {
+            "status": "completed",
+            "description": "Added core `SkillsWatcher` class with debounced change batching, lifecycle controls, and foundational tests",
+            "files_created": [
+              "src/skills/watcher.ts",
+              "src/skills/watcher.test.ts"
+            ],
+            "files_modified": [
+              "src/skills/index.ts"
+            ],
+            "test_status": "typecheck + targeted watcher tests + full test suite + lint (warnings only, 0 errors) + build passing"
+          }
+        }
       },
       "phase_3_installer_specs": {
         "priority": "P1",
@@ -1304,7 +1318,7 @@
   },
 
   "overall_progress": {
-    "total_test_count": 1504,
+    "total_test_count": 1509,
     "all_tests_passing": true,
     "p0_completion": "3/3 (100%)",
     "p1_completion": "4/4 (100%)",
@@ -1324,7 +1338,7 @@
     "gmail_auth_cli": "flynn gmail-auth command implemented with OAuth2 flow, doctor check, config routed to Telegram",
     "native_audio_support": "completed — smart routing for native audio (Gemini/OpenAI/GitHub) vs Whisper transcription fallback",
     "remaining_phases_completion": "Phase 1: 3/3 (100%) — context levels, command registry, memory structure. Phase 2: 2/2 (100%) — component registry, confidence routing. Phase 3: 2/2 (100%) — adaptive memory/compaction, truthfulness/autonomy hardening",
-    "next_up": "Skills infrastructure Phase 2: implement skill auto-reload watcher with configurable debounce"
+    "next_up": "Skills infrastructure Phase 2: wire SkillsWatcher into daemon init/shutdown and config toggle"
   },
   "soul_md_and_cron_create": {
     "date": "2026-02-11",