feat: add remote device settings portal and Pi hot reload

- add /settings/device portal page and portal device-config GET endpoint
- add portal navigation and client-side device settings editor UI
- hot-reload Account/Car display config after local saves and server syncs
- document portal workflow and Phase 25.5b completion
- add runtime reload tests for account, car, and sync callback

Co-authored-by: Copilot <[email protected]>

modules/app_account.py

@@ -1,15 +1,22 @@
 import json
 import os
 
+
 class Account:
     def __init__(self):
-        # Load from config/device.json at startup
-        # Database values are updated via Settings UI, but Account object reflects startup state
         config = self._load_config()
         self.name = config.get("owner_name", "quoije")
         self.avatar_path = config.get("avatar_path", "img/yaris.png")
         self.pp_image = None
         self.car = None
+
+    def reload_runtime_config(self):
+        """Refresh display-facing fields from the live device config store."""
+        from . import app_device_config
+
+        config = app_device_config.get_device_config()
+        self.name = config.get("owner_name", "quoije")
+        self.avatar_path = config.get("avatar_path", "img/yaris.png")
     
     def _load_config(self):
         """Load device config from JSON file, return dict with defaults."""

modules/app_car.py

@@ -1,15 +1,22 @@
 import json
 import os
 
+
 class Car:
     def __init__(self):
-        # Load from config/device.json at startup
-        # Database values are updated via Settings UI, but Car object reflects startup state
         config = self._load_config()
         self.model = config.get("car_model", "Yaris 2013")
         self.device_name = config.get("device_name", "Yaris OBD")
         self.obd = None
-    
+
+    def reload_runtime_config(self):
+        """Refresh display-facing fields from the live device config store."""
+        from . import app_device_config
+
+        config = app_device_config.get_device_config()
+        self.model = config.get("car_model", "Yaris 2013")
+        self.device_name = config.get("device_name", "Yaris OBD")
+
     def _load_config(self):
         """Load device config from JSON file, return dict with defaults."""
         config_path = os.path.join(os.path.dirname(os.path.dirname(__file__)), "config", "device.json")

modules/app_device_sync.py

@@ -17,6 +17,7 @@ from . import app_network, app_sql
 _SYNC_THREAD = None
 _SYNC_STOP = False
 _SYNC_CONFIG_VERSION = 0  # Track last-synced version to detect changes
+_RELOAD_CALLBACK = None
 
 
 def _has_internet():
@@ -44,6 +45,12 @@ def start_sync():
     _SYNC_THREAD.start()
 
 
+def register_reload_callback(callback):
+    """Register a callback invoked after synced config is written locally."""
+    global _RELOAD_CALLBACK
+    _RELOAD_CALLBACK = callback
+
+
 def stop_sync():
     """Stop background device config sync thread."""
     global _SYNC_STOP
@@ -112,10 +119,8 @@ def _store_synced_config(config):
 
 def _on_config_changed():
     """Called when config changes and needs to be reloaded by app."""
-    # This is a signal for future hot-reload implementation
-    # For now, config is automatically read from database on each request
-    # A full reload would require restarting the app or using a signal handler
-    pass
+    if _RELOAD_CALLBACK is not None:
+        _RELOAD_CALLBACK()
 
 
 def is_sync_enabled():