diff --git a/aggregator.py b/aggregator.py
index 08d170e..c6df809 100644
--- a/aggregator.py
+++ b/aggregator.py
@@ -118,7 +118,7 @@ def get_current_state():
             sound = top_event["sound"]
 
     # Check for recovery (was bad, now optimal)
-    if priority == 4 and previous_priority < 4:
+    if priority == 4 and previous_priority < 3:
         celebrating_until = now + CELEBRATION_DURATION
 
     previous_priority = priority
@@ -171,20 +171,23 @@ def write_status():
 def cleanup_expired_events():
     """Background thread to remove expired TTL events."""
     while True:
-        time.sleep(1)
-        now = time.time()
-        expired = []
+        try:
+            time.sleep(1)
+            now = time.time()
+            expired = []
 
-        with events_lock:
-            for eid, event in active_events.items():
-                if event.get("ttl") and now > event["ttl"]:
-                    expired.append(eid)
+            with events_lock:
+                for eid, event in active_events.items():
+                    if event.get("ttl") and now > event["ttl"]:
+                        expired.append(eid)
 
-            for eid in expired:
-                del active_events[eid]
+                for eid in expired:
+                    del active_events[eid]
 
-        if expired:
-            write_status()
+            if expired:
+                write_status()
+        except Exception as e:
+            print(f"[cleanup] Error: {e}")
 
 
 @app.route("/event", methods=["POST"])
diff --git a/openapi.yaml b/openapi.yaml
index bd86cfd..f130e0d 100644
--- a/openapi.yaml
+++ b/openapi.yaml
@@ -19,7 +19,7 @@ info:
     name: MIT
 
 servers:
-  - url: http://localhost:5100
+  - url: http://192.168.2.114:5100
     description: Local development server
 
 paths:
@@ -36,7 +36,7 @@ paths:
         content:
           application/json:
             schema:
-              $ref: '#/components/schemas/EventRequest'
+              $ref: "#/components/schemas/EventRequest"
             examples:
               critical:
                 summary: Critical event
@@ -52,18 +52,18 @@ paths:
                   message: "CPU nominal"
                   ttl: 60
       responses:
-        '200':
+        "200":
           description: Event registered successfully
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/EventResponse'
-        '400':
+                $ref: "#/components/schemas/EventResponse"
+        "400":
           description: Invalid request
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/Error'
+                $ref: "#/components/schemas/Error"
 
   /clear:
     post:
@@ -84,24 +84,24 @@ paths:
                   description: Event identifier to clear
                   example: "disk_root"
       responses:
-        '200':
+        "200":
           description: Event cleared successfully
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/ClearResponse'
-        '400':
+                $ref: "#/components/schemas/ClearResponse"
+        "400":
           description: Missing required field
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/Error'
-        '404':
+                $ref: "#/components/schemas/Error"
+        "404":
           description: Event not found
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/Error'
+                $ref: "#/components/schemas/Error"
 
   /notify:
     post:
@@ -116,7 +116,7 @@ paths:
         content:
           application/json:
             schema:
-              $ref: '#/components/schemas/NotifyRequest'
+              $ref: "#/components/schemas/NotifyRequest"
             examples:
               simple:
                 summary: Simple notification
@@ -133,12 +133,12 @@ paths:
                   animation: "celebrating"
                   sound: "chime"
       responses:
-        '200':
+        "200":
           description: Notification sent
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/NotifyResponse'
+                $ref: "#/components/schemas/NotifyResponse"
 
   /sleep:
     post:
@@ -148,12 +148,12 @@ paths:
         dimmed colors. All events are preserved but not displayed until wake.
       operationId: sleep
       responses:
-        '200':
+        "200":
           description: Entered sleep mode
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/SleepResponse'
+                $ref: "#/components/schemas/SleepResponse"
 
   /wake:
     post:
@@ -161,12 +161,12 @@ paths:
       description: Wake Kao from sleep mode and resume normal status display.
       operationId: wake
       responses:
-        '200':
+        "200":
           description: Exited sleep mode
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/WakeResponse'
+                $ref: "#/components/schemas/WakeResponse"
 
   /status:
     get:
@@ -176,12 +176,12 @@ paths:
         animation, and list of active events. The frontend polls this endpoint.
       operationId: getStatus
       responses:
-        '200':
+        "200":
           description: Current status
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/Status'
+                $ref: "#/components/schemas/Status"
 
   /events:
     get:
@@ -189,12 +189,12 @@ paths:
       description: Returns all currently active events with their full details.
       operationId: listEvents
       responses:
-        '200':
+        "200":
           description: List of active events
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/EventList'
+                $ref: "#/components/schemas/EventList"
 
 components:
   schemas:
@@ -231,7 +231,7 @@ components:
           type: string
           example: "ok"
         current_state:
-          $ref: '#/components/schemas/Status'
+          $ref: "#/components/schemas/Status"
 
     ClearResponse:
       type: object
@@ -240,7 +240,7 @@ components:
           type: string
           example: "cleared"
         current_state:
-          $ref: '#/components/schemas/Status'
+          $ref: "#/components/schemas/Status"
 
     NotifyRequest:
       type: object
@@ -261,7 +261,7 @@ components:
         color:
           type: string
           description: Custom color in hex format
-          pattern: '^#[0-9A-Fa-f]{6}$'
+          pattern: "^#[0-9A-Fa-f]{6}$"
           example: "#FF9900"
         animation:
           type: string
@@ -299,7 +299,7 @@ components:
           description: Generated event ID
           example: "ha_notify_1704067200000"
         current_state:
-          $ref: '#/components/schemas/Status'
+          $ref: "#/components/schemas/Status"
 
     SleepResponse:
       type: object
@@ -308,7 +308,7 @@ components:
           type: string
           example: "sleeping"
         current_state:
-          $ref: '#/components/schemas/Status'
+          $ref: "#/components/schemas/Status"
 
     WakeResponse:
       type: object
@@ -317,7 +317,7 @@ components:
           type: string
           example: "awake"
         current_state:
-          $ref: '#/components/schemas/Status'
+          $ref: "#/components/schemas/Status"
 
     Status:
       type: object
@@ -355,7 +355,7 @@ components:
         active_events:
           type: array
           items:
-            $ref: '#/components/schemas/ActiveEvent'
+            $ref: "#/components/schemas/ActiveEvent"
         last_updated:
           type: string
           format: date-time