feat: implement conversation mute and favorite functionality with corresponding notification suppression.

src/messages/messages.controller.ts

@@ -218,6 +218,36 @@ export class MessagesController {
     return this.messagesService.markMessagesAsRead(conversationId, userId);
   }
 
+  // ==========================================
+  // TOGGLE MUTE
+  // ==========================================
+  @Patch('conversations/:id/mute')
+  @HttpCode(HttpStatus.OK)
+  @ApiOperation({ summary: 'Mute or unmute conversation notifications' })
+  @ApiParam({ name: 'id', description: 'Conversation ID' })
+  async toggleMute(
+    @Param('id') conversationId: string,
+    @CurrentUser('id') userId: string,
+    @Body() dto: { muted: boolean },
+  ) {
+    return this.messagesService.toggleMute(conversationId, userId, dto.muted);
+  }
+
+  // ==========================================
+  // TOGGLE FAVORITE
+  // ==========================================
+  @Patch('conversations/:id/favorite')
+  @HttpCode(HttpStatus.OK)
+  @ApiOperation({ summary: 'Star or unstar a conversation' })
+  @ApiParam({ name: 'id', description: 'Conversation ID' })
+  async toggleFavorite(
+    @Param('id') conversationId: string,
+    @CurrentUser('id') userId: string,
+    @Body() dto: { favorited: boolean },
+  ) {
+    return this.messagesService.toggleFavorite(conversationId, userId, dto.favorited);
+  }
+
   // ==========================================
   // CLEAR CHAT (delete messages, keep conversation)
   // ==========================================