Bump to v1.4.0: tap-to-dismiss, docker restart detection, cleanup thread fix

Add /clear-all endpoint and wire it to the tap handler so tapping the
display dismisses active warnings/critical alerts. Fix docker detector
to track restart count deltas instead of relying on the transient
"restarting" state. Wrap cleanup thread in try/except so it can't die
silently and leave events stuck forever.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

detectors/docker.py

@@ -115,6 +115,7 @@ def main():
     print()
 
     active_alerts = set()
+    last_restart_counts = {}
 
     while True:
         containers = get_container_status()
@@ -137,15 +138,23 @@ def main():
 
             event_id = f"docker_{name.replace('/', '_')}"
 
-            # Check for restarting state
-            if state == "restarting":
+            # Check restart count for running/restarting containers
+            # The "restarting" state is too transient to catch reliably,
+            # so we track count increases between checks instead
+            if state in ("running", "restarting"):
                 restart_count = get_restart_count(name)
-                if restart_count >= RESTART_THRESHOLD:
+                prev_count = last_restart_counts.get(name, restart_count)
+                new_restarts = restart_count - prev_count
+                last_restart_counts[name] = restart_count
+
+                if state == "restarting" or new_restarts >= RESTART_THRESHOLD:
                     send_event(event_id, 1, f"Container '{name}' restart loop ({restart_count}x)")
                     current_alerts.add(event_id)
-                else:
+                elif new_restarts > 0:
                     send_event(event_id, 2, f"Container '{name}' restarting ({restart_count}x)")
                     current_alerts.add(event_id)
+                else:
+                    print(f"[OK] Container '{name}' is {state}")
 
             # Check for exited/dead containers (warning)
             elif state in ("exited", "dead"):