持久化tap_sensitivity设置

- 在Preferences中添加tap_sensitivity字段
- 修改entity setter保存设置到preferences.json
- 启动时加载保存的tap_sensitivity值
- 重启后会记住ESPHome中设置的值

reachy_mini_ha_voice/entity_registry.py

@@ -746,10 +746,15 @@ class EntityRegistry:
             return TAP_THRESHOLD_G_DEFAULT
 
         def set_tap_sensitivity(value: float) -> None:
-            """Set tap sensitivity threshold in g."""
+            """Set tap sensitivity threshold in g and save to preferences."""
             if self.tap_detector:
                 self.tap_detector.threshold_g = value
                 _LOGGER.info("Tap sensitivity set to %.2fg", value)
+            # Save to preferences for persistence across restarts
+            if self.state:
+                self.state.preferences.tap_sensitivity = value
+                self.state.save_preferences()
+                _LOGGER.debug("Tap sensitivity saved to preferences")
 
         entities.append(NumberEntity(
             server=self.server,

reachy_mini_ha_voice/models.py

@@ -48,6 +48,7 @@ class AvailableWakeWord:
 @dataclass
 class Preferences:
     active_wake_words: List[str] = field(default_factory=list)
+    tap_sensitivity: float = 0.5  # Tap detection threshold in g (0.5 = most sensitive)
 
 
 @dataclass

reachy_mini_ha_voice/voice_assistant.py

@@ -174,12 +174,15 @@ class VoiceAssistantService:
         # Start tap detector for "tap to wake" (Wireless version only)
         if self.reachy_mini is not None:
             from .tap_detector import TAP_THRESHOLD_G_DEFAULT
+            # Use saved preference or default
+            tap_threshold = preferences.tap_sensitivity if preferences.tap_sensitivity > 0 else TAP_THRESHOLD_G_DEFAULT
             self._tap_detector = TapDetector(
                 reachy_mini=self.reachy_mini,
                 on_tap_callback=self._on_tap_detected,
-                threshold_g=TAP_THRESHOLD_G_DEFAULT,  # 0.5g (most sensitive)
+                threshold_g=tap_threshold,
                 cooldown_seconds=1.0,
             )
+            _LOGGER.info("Tap detector started with threshold: %.1fg", tap_threshold)
             self._tap_detector.start()
             # Store tap_detector in state for entity registry access
             self._state.tap_detector = self._tap_detector