Fix autorestore logic and protocol badge per device type

Autorestore fixes:
- Snapshot WLED state before connect() mutates it (lor, AudioReactive)
- Gate restore on auto_shutdown setting (was unconditional)
- Remove misleading auto_restore capability from serial provider
- Default auto_shutdown to false for all new devices

Protocol badge fixes:
- Show correct protocol per device type (OpenRGB SDK, MQTT, WebSocket)
- Was showing "Serial" for all non-WLED devices

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

server/src/wled_controller/core/processing/processor_manager.py

@@ -165,6 +165,7 @@ class ProcessorManager:
             send_latency_ms=send_latency_ms,
             rgbw=rgbw,
             zone_mode=ds.zone_mode,
+            auto_shutdown=ds.auto_shutdown,
         )
 
     # ===== EVENT SYSTEM (state change notifications) =====

server/src/wled_controller/core/processing/target_processor.py

@@ -75,6 +75,7 @@ class DeviceInfo:
     send_latency_ms: int = 0
     rgbw: bool = False
     zone_mode: str = "combined"
+    auto_shutdown: bool = False
 
 
 @dataclass

server/src/wled_controller/core/processing/wled_target_processor.py

@@ -197,9 +197,11 @@ class WledTargetProcessor(TargetProcessor):
             self._task = None
             await asyncio.sleep(0.05)
 
-        # Restore device state
+        # Restore device state (only if auto_shutdown is enabled)
         if self._led_client and self._device_state_before:
-            await self._led_client.restore_device_state(self._device_state_before)
+            device_info = self._ctx.get_device_info(self._device_id)
+            if device_info and device_info.auto_shutdown:
+                await self._led_client.restore_device_state(self._device_state_before)
             self._device_state_before = None
 
         # Close LED connection