voice note and sticker pack and gifs

signaling-server.mjs

@@ -143,6 +143,25 @@ io.on("connection", (socket) => {
         io.to(targetSocketId).emit("call:busy", { from: userId })
       }
     })
+
+    socket.on("message:deleted", async ({ conversationId, messageId, senderId }) => {
+      try {
+        const result = await pool.query(
+          `SELECT cp.user_id FROM conversation_participants cp
+           WHERE cp.conversation_id = $1 AND cp.user_id != $2`,
+          [conversationId, senderId || userId],
+        )
+        for (const row of result.rows) {
+          const targetSocketId = onlineUsers.get(row.user_id)
+          if (targetSocketId) {
+            io.to(targetSocketId).emit("message:deleted", { conversationId, messageId })
+          }
+        }
+        console.log(`[message:deleted] broadcast msg=${messageId} conv=${conversationId} by=${senderId || userId}`)
+      } catch {
+        console.warn(`[message:deleted] failed to broadcast msg=${messageId}`)
+      }
+    })
   }
 
   socket.on("room:join", ({ roomId, displayName }) => {