feat: 添加举报功能前端支持

- 新增 reportService API 服务
- 新增 ReportDialog 举报对话框组件
- 集成举报入口到 PostCard、CommentItem、LongPressMenu

Made-with: Cursor

src/services/reportService.ts

@@ -0,0 +1,83 @@
+/**
+ * 举报服务
+ * 处理帖子、评论、消息的举报功能
+ */
+
+import { api } from './api';
+
+// 举报原因类型
+export type ReportReason = 'spam' | 'inappropriate' | 'harassment' | 'misinformation' | 'other';
+
+// 举报目标类型
+export type ReportTargetType = 'post' | 'comment' | 'message';
+
+// 创建举报请求
+interface CreateReportRequest {
+  target_type: ReportTargetType;
+  target_id: string;
+  reason: ReportReason;
+  description?: string;
+}
+
+// 举报响应
+export interface ReportResponse {
+  id: string;
+  reporter_id: string;
+  target_type: ReportTargetType;
+  target_id: string;
+  reason: ReportReason;
+  description?: string;
+  status: 'pending' | 'processing' | 'resolved' | 'rejected';
+  created_at: string;
+}
+
+// 举报原因选项
+export const REPORT_REASONS: { value: ReportReason; label: string }[] = [
+  { value: 'spam', label: '垃圾广告' },
+  { value: 'inappropriate', label: '违规内容' },
+  { value: 'harassment', label: '辱骂/攻击' },
+  { value: 'misinformation', label: '虚假信息' },
+  { value: 'other', label: '其他' },
+];
+
+// 举报服务类
+class ReportService {
+  /**
+   * 创建举报
+   * @param targetType 举报目标类型
+   * @param targetId 目标ID
+   * @param reason 举报原因
+   * @param description 详细描述（可选）
+   */
+  async createReport(
+    targetType: ReportTargetType,
+    targetId: string,
+    reason: ReportReason,
+    description?: string
+  ): Promise<ReportResponse | null> {
+    try {
+      const request: CreateReportRequest = {
+        target_type: targetType,
+        target_id: targetId,
+        reason,
+        description,
+      };
+      const response = await api.post<ReportResponse>('/reports', request);
+      return response.data;
+    } catch (error) {
+      console.error('创建举报失败:', error);
+      return null;
+    }
+  }
+
+  /**
+   * 获取举报原因标签
+   */
+  getReasonLabel(reason: ReportReason): string {
+    const item = REPORT_REASONS.find(r => r.value === reason);
+    return item?.label ?? reason;
+  }
+}
+
+export const reportService = new ReportService();
+export default reportService;