feat(watcher.node): Add automatic restart, periodic health checks, and safe event emission to Node watcher; improve logging and stat handling

readme.hints.md

@@ -71,6 +71,37 @@ The `WriteStabilizer` class replaces chokidar's built-in write stabilization:
 - **Deno**: Works on all versions with `Deno.watchFs()`
 - **Bun**: Uses Node.js compatibility layer
 
+### Robustness Features (v6.1.0+)
+
+The Node.js watcher includes automatic recovery mechanisms:
+
+**Auto-restart on failure:**
+- Watchers automatically restart when errors occur
+- Exponential backoff (1s → 30s max)
+- Maximum 3 retry attempts before giving up
+
+**Health check monitoring:**
+- 30-second periodic health checks
+- Detects when watched paths disappear
+- Triggers automatic restart when issues detected
+
+**Error isolation:**
+- Subscriber errors don't crash the watcher
+- All events emitted via `safeEmit()` with try-catch
+
+**Verbose logging:**
+- All lifecycle events logged with `[smartwatch]` prefix
+- Helps debug watcher issues in production
+
+Example log output:
+```
+[smartwatch] Starting watcher for 1 base path(s)...
+[smartwatch] Started watching: ./test/assets/
+[smartwatch] Starting health check (every 30s)
+[smartwatch] Watcher started with 1 active watcher(s)
+[smartwatch] Health check: 1 watchers active
+```
+
 ### Testing
 
 ```bash