feat(CommentItem, PostDetailScreen, ReportDialog): integrate report functionality

- Added report button to CommentItem for reporting comments and replies.
- Integrated ReportDialog into PostDetailScreen for handling report submissions.
- Enhanced ReportDialog with detailed report reasons and improved UI interactions.
- Updated styles across various components for a more modern look and feel.

Made-with: Cursor

src/components/business/CommentItem.tsx

@@ -215,6 +215,7 @@ const CommentItem: React.FC<CommentItemProps> = ({
   onDelete,
   onImagePress,
   currentUserId,
+  onReport,
 }) => {
   const colors = useAppColors();
   const styles = useMemo(() => createCommentItemStyles(colors), [colors]);
@@ -541,6 +542,18 @@ const CommentItem: React.FC<CommentItemProps> = ({
                       </Text>
                     </TouchableOpacity>
                   )}
+                  {/* 举报按钮 - 对非子评论作者显示 */}
+                  {!isSubReplyAuthor && onReport && (
+                    <TouchableOpacity
+                      style={styles.subActionButton}
+                      onPress={() => onReport(reply)}
+                    >
+                      <MaterialCommunityIcons name="flag-outline" size={12} color={colors.text.hint} />
+                      <Text variant="caption" color={colors.text.hint} style={styles.subActionText}>
+                        举报
+                      </Text>
+                    </TouchableOpacity>
+                  )}
                 </View>
               </View>
             </TouchableOpacity>
@@ -635,6 +648,19 @@ const CommentItem: React.FC<CommentItemProps> = ({
             </Text>
           </TouchableOpacity>
 
+          {/* 举报按钮 - 只对非评论作者显示 */}
+          {!isCommentAuthor && onReport && (
+            <TouchableOpacity
+              style={styles.actionButton}
+              onPress={() => onReport(comment)}
+            >
+              <MaterialCommunityIcons name="flag-outline" size={14} color={colors.text.hint} />
+              <Text variant="caption" color={colors.text.hint} style={styles.actionText}>
+                举报
+              </Text>
+            </TouchableOpacity>
+          )}
+
           {/* 删除按钮 - 只对评论作者显示 */}
           {isCommentAuthor && (
             <TouchableOpacity