fix app_status

can_sniffer/src/flipper/providers/app_status_provider.py

@@ -5,7 +5,7 @@ Collects status from all can_sniffer components for display on Flipper Zero.
 """
 
 import time
-from dataclasses import dataclass, field
+from dataclasses import dataclass
 from typing import Dict, Any, Optional
 
 from flipper.providers.base import BaseProvider
@@ -41,7 +41,7 @@ class AppStatusData:
     uptime_seconds: float = 0.0
 
 
-class AppStatusProvider(BaseProvider[AppStatusData]):
+class AppStatusProvider(BaseProvider):
     """
     Provider for application status data.
 
@@ -55,11 +55,13 @@ class AppStatusProvider(BaseProvider[AppStatusData]):
     _start_time: float = 0.0
 
     def __init__(self):
-        super().__init__()
+        super().__init__(name="app_status", cache_ttl=1.0)
-        self._data = AppStatusData()
+        if not hasattr(self, '_data'):
-        AppStatusProvider._start_time = time.time()
+            self._data = AppStatusData()
+        if AppStatusProvider._start_time == 0.0:
+            AppStatusProvider._start_time = time.time()
 
-    def refresh(self) -> None:
+    def refresh(self) -> bool:
         """Refresh status data from all components."""
         try:
             self._collect_storage_status()
@@ -78,6 +80,7 @@ class AppStatusProvider(BaseProvider[AppStatusData]):
 
         # Uptime
         self._data.uptime_seconds = time.time() - AppStatusProvider._start_time
+        return True
 
     def _collect_storage_status(self) -> None:
         """Collect SQLite storage status."""