feat(background): implement user consent mechanism for auto-start functionality

Add auto-start consent system that requires explicit user permission before enabling background sync services. Users can now choose between silent mode (no auto-start) or background mode (15-minute sync intervals).

- Add consent service with AutoStartMode enum and storage utilities
- Create withRemoveAutoStart Expo plugin to disable Android auto-start defaults
- Integrate consent checks into JPush service, background task manager, and foreground service
- Add auto-start consent UI in notification settings with descriptive dialog
- Update privacy policy with section 8 explaining auto-start scenarios and user controls
- Change default sync mode from BATTERY_SAVER to DISABLED
- Export reinitBackgroundService function for re-initializing after consent changes
- Merge OTA Android and iOS workflows into matrix build
- Add release signing config in withSigning plugin for Android
- Expand .dockerignore with native credential and build artifact exclusions

src/hooks/useRegisterPushDevice.ts

@@ -2,6 +2,7 @@ import { useEffect, useRef } from 'react';
 import { Platform } from 'react-native';
 
 import { jpushService } from '../services/notification/jpushService';
+import { isAutoStartAllowed } from '../services/consent/autoStartConsent';
 
 export function useRegisterPushDevice(isAuthenticated: boolean, userID?: string) {
   const deviceRegistered = useRef(false);
@@ -9,6 +10,12 @@ export function useRegisterPushDevice(isAuthenticated: boolean, userID?: string)
   useEffect(() => {
     if (Platform.OS === 'web' || !isAuthenticated || !userID) return;
 
+    // 仅在用户同意自启动后才初始化 JPush
+    if (!isAutoStartAllowed()) {
+      console.log('[useRegisterPushDevice] 用户未同意自启动，跳过 JPush 初始化');
+      return;
+    }
+
     if (!deviceRegistered.current) {
       deviceRegistered.current = true;