feat: implement comment reporting system

Added comprehensive comment reporting infrastructure similar to profile reporting.

API Changes:
- New CommentReport model in Prisma schema with relations to User and Comment
- CommentReportService with CRUD operations, duplicate prevention, and rate limiting
- API routes at /comment-reports for creating and managing comment reports
- Updated CommentService to include hasPendingReports flag for all comments

Frontend Changes:
- Created shared CommentDisplayComponent for reusable comment display with report button
- Updated ReportModalComponent to handle both profile and comment reports
- CommentReportService for API communication
- Integrated CommentDisplayComponent into games-list component
- Comments with pending reports show "[comment pending admin review]" message

Features:
- Users can report comments they didn't write
- Duplicate prevention (one pending report per comment per user)
- Rate limiting (5 pending reports maximum per user)
- Admins can review and action comment reports
- Comments are hidden during review to prevent abuse

Remaining Work:
- Need to integrate CommentDisplayComponent into remaining media components (books, music, art, shows, manga)
- Need to extend admin-reports page to display comment reports alongside profile reports

shared-types/src/lib/comment.types.ts

@@ -15,19 +15,20 @@ interface CommentUser {
 }
 
 interface Comment {
-  id:          string;
-  content:     string;
-  rawContent?: string;
-  userId:      string;
-  user:        CommentUser;
-  gameId?:     string;
-  bookId?:     string;
-  musicId?:    string;
-  artId?:      string;
-  showId?:     string;
-  mangaId?:    string;
-  createdAt:   Date;
-  updatedAt:   Date;
+  id:                  string;
+  content:             string;
+  rawContent?:         string;
+  userId:              string;
+  user:                CommentUser;
+  gameId?:             string;
+  bookId?:             string;
+  musicId?:            string;
+  artId?:              string;
+  showId?:             string;
+  mangaId?:            string;
+  hasPendingReports?:  boolean;
+  createdAt:           Date;
+  updatedAt:           Date;
 }
 
 interface CreateCommentDto {

shared-types/src/lib/report.types.ts

@@ -58,3 +58,53 @@ export interface UpdateReportDto {
   status:       ReportStatus;
   reviewNotes?: string;
 }
+
+export interface CommentReport {
+  id:                string;
+  reportedCommentId: string;
+  reporterId:        string;
+  reason:            ReportReason;
+  details:           string;
+  status:            ReportStatus;
+  reviewedBy?:       string;
+  reviewNotes?:      string;
+  createdAt:         Date;
+  updatedAt:         Date;
+}
+
+export interface CommentReportWithDetails extends CommentReport {
+  reportedComment: {
+    id:         string;
+    content:    string;
+    rawContent?: string;
+    userId:     string;
+    user: {
+      id:           string;
+      username:     string;
+      displayName?: string;
+      avatar?:      string;
+    };
+  };
+  reporter: {
+    id:           string;
+    username:     string;
+    displayName?: string;
+    avatar?:      string;
+  };
+  reviewer?: {
+    id:           string;
+    username:     string;
+    displayName?: string;
+  };
+}
+
+export interface CreateCommentReportDto {
+  reportedCommentId: string;
+  reason:            ReportReason;
+  details:           string;
+}
+
+export interface UpdateCommentReportDto {
+  status:       ReportStatus;
+  reviewNotes?: string;
+}