feat(content): add rich content rendering with @mentions and vote segments

- Add PostContentRenderer component for rendering posts/comments with segments
- Add PostMentionInput component for @mention support in post/comment creation
- Add VoteSegmentData and vote segment type for unified post creation API
- Update post and comment services to support segments in API requests
- Fix auth service to clear tokens before login/register
- Improve database initialization with proper close/retry logic
- Add verification check before allowing post creation
- Add metro web shims for react-native-webrtc full package and requireNativeComponent
- Update build config with git hash based version numbers

src/stores/auth/authStore.ts

@@ -141,8 +141,21 @@ export const useAuthStore = create<AuthState>((set) => ({
 
       const userId = String(user.id);
 
-      // 2. 初始化用户专属数据库
-      await switchDatabase(userId);
+      // 2. 关闭旧数据库连接后再初始化用户专属数据库
+      try {
+        await closeDatabase();
+      } catch {}
+      try {
+        await switchDatabase(userId);
+      } catch (dbErr) {
+        console.warn('[AuthStore] switchDatabase 失败，将重试:', dbErr);
+        try {
+          await closeDatabase();
+          await switchDatabase(userId);
+        } catch (retryErr) {
+          console.error('[AuthStore] switchDatabase 重试仍失败:', retryErr);
+        }
+      }
 
       // 3. 持久化 userId（供下次冷启动提前初始化 DB 用）
       await saveUserId(userId);
@@ -160,8 +173,10 @@ export const useAuthStore = create<AuthState>((set) => ({
         error: null,
       });
 
-      // 6. 启动 SSE
-      await startRealtime();
+      // 6. 启动 SSE（不阻塞登录结果）
+      startRealtime().catch((err) => {
+        console.warn('[AuthStore] 启动实时服务失败:', err);
+      });
 
       return true;
     } catch (error: any) {
@@ -187,7 +202,21 @@ export const useAuthStore = create<AuthState>((set) => ({
 
       const userId = String(user.id);
 
-      await switchDatabase(userId);
+      try {
+        await closeDatabase();
+      } catch {}
+      try {
+        await switchDatabase(userId);
+      } catch (dbErr) {
+        console.warn('[AuthStore] register switchDatabase 失败，将重试:', dbErr);
+        try {
+          await closeDatabase();
+          await switchDatabase(userId);
+        } catch (retryErr) {
+          console.error('[AuthStore] register switchDatabase 重试仍失败:', retryErr);
+        }
+      }
+
       await saveUserId(userId);
       await cacheUser(user);
 
@@ -201,7 +230,10 @@ export const useAuthStore = create<AuthState>((set) => ({
         error: null,
       });
 
-      await startRealtime();
+      // 启动 SSE（不阻塞注册结果）
+      startRealtime().catch((err) => {
+        console.warn('[AuthStore] 启动实时服务失败:', err);
+      });
 
       return true;
     } catch (error: any) {
@@ -275,8 +307,14 @@ export const useAuthStore = create<AuthState>((set) => ({
         // 4. 确保 DB 已初始化（如果预初始化失败，这里会重试）
         const dbReady = isDbInitialized() && getCurrentDbUserId() === userId;
         if (!dbReady) {
-await switchDatabase(userId);
-
+          try {
+            await closeDatabase();
+          } catch {}
+          try {
+            await switchDatabase(userId);
+          } catch (dbErr) {
+            console.warn('[AuthStore] fetchCurrentUser switchDatabase 失败:', dbErr);
+          }
         }
 
         // 5. 更新持久化的 userId
@@ -296,8 +334,10 @@ await switchDatabase(userId);
           isLoading: false,
         });
 
-        // 8. 启动 SSE
-        await startRealtime();
+        // 8. 启动 SSE（不阻塞状态设置）
+        startRealtime().catch((err) => {
+          console.warn('[AuthStore] 冷启动实时服务失败:', err);
+        });
       } else {
         // Token 已失效或不存在
         await clearUserId();