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/screens/home/PostDetailScreen.tsx

@@ -1,4 +1,4 @@
-/**
+/**
  * 帖子详情页 PostDetailScreen - QQ频道风格（响应式版本）
  * 威友 - 显示完整帖子内容和评论
  * 桌面端使用双栏布局，移动端使用单栏布局
@@ -33,13 +33,13 @@ import {
   useAppColors,
   type AppColors,
 } from '../../theme';
-import { Post, Comment, VoteResultDTO, VoteOptionDTO } from '../../types';
+import { Post, Comment, VoteResultDTO, VoteOptionDTO, MessageSegment } from '../../types';
 import { useUserStore } from '../../stores';
 import { useCurrentUser } from '../../stores/auth';
 import { postService, commentService, uploadService, authService, showPrompt, voteService } from '../../services';
 import { postSyncService } from '@/services/post';
 import { useCursorPagination } from '../../hooks/useCursorPagination';
-import { CommentItem, VoteCard, ReportDialog, ShareSheet } from '../../components/business';
+import { CommentItem, VoteCard, ReportDialog, ShareSheet, PostContentRenderer, PostMentionInput } from '../../components/business';
 import { Avatar, Button, Loading, EmptyState, Text, ImageGallery, ImageGrid, ImageGridItem, AdaptiveLayout, AppBackButton } from '../../components/common';
 import { useResponsive, useResponsiveValue, useResponsiveSpacing } from '../../hooks/useResponsive';
 import { handleError } from '@/services/core';
@@ -191,6 +191,7 @@ export const PostDetailScreen: React.FC = () => {
     }
   }, [commentsError, postId]);
   const [commentText, setCommentText] = useState('');
+  const [commentSegments, setCommentSegments] = useState<MessageSegment[]>([]);
   const [showImageModal, setShowImageModal] = useState(false);
   const [selectedImageIndex, setSelectedImageIndex] = useState(0);
   const [allImages, setAllImages] = useState<ImageGridItem[]>([]);
@@ -741,6 +742,7 @@ export const PostDetailScreen: React.FC = () => {
       root_id: rootId,
       target_id: parentId,
       content: commentText.trim(),
+      segments: commentSegments.length > 0 ? commentSegments : undefined,
       images: uploadedImageUrls.map(url => ({ url })),
       likes_count: 0,
       replies_count: 0,
@@ -798,6 +800,7 @@ export const PostDetailScreen: React.FC = () => {
       const createdComment = await commentService.createComment({
         postId: post.id,
         content: commentText.trim(),
+        segments: commentSegments.length > 0 ? commentSegments : undefined,
         parentId: parentId || undefined,
         images: uploadedImageUrls,
       });
@@ -1097,18 +1100,17 @@ export const PostDetailScreen: React.FC = () => {
 
         {/* 内容 - 增大字体 */}
         <View style={styles.contentContainer}>
-          <Text 
-            variant="body" 
-            style={[
+          <PostContentRenderer
+            content={post.content}
+            segments={post.segments}
+            textStyle={[
               styles.content,
               {
                 fontSize: isDesktop ? fontSizes.xl : isTablet ? fontSizes.lg : fontSizes.lg,
                 lineHeight: isDesktop ? 32 : isTablet ? 30 : 28
               }
             ]}
-          >
-            {post.content}
-          </Text>
+          />
         </View>
 
         {/* 图片 - 详情页显示所有图片，不限制数量 */}
@@ -1442,15 +1444,14 @@ export const PostDetailScreen: React.FC = () => {
           )}
 
           {/* Text Input */}
-          <TextInput
-            style={styles.expandedTextInput}
-            placeholder="来说点什么吧！"
-            placeholderTextColor={colors.text.hint}
+          <PostMentionInput
             value={commentText}
             onChangeText={setCommentText}
-            multiline
-            autoFocus
+            onSegmentsChange={setCommentSegments}
+            placeholder="来说点什么吧！"
             maxLength={500}
+            minHeight={40}
+            style={styles.expandedTextInput}
           />
 
           {/* Image preview */}