Add room invites and chat moderation

server.js

@@ -160,6 +160,16 @@ app.prepare().then(() => {
       await broadcastRoom(io, room.slug, room.id);
     }));
 
+    socket.on("chat:delete", (payload) => safeRoomAction(socket, async ({ room, user }) => {
+      if (!canManageRoom(room, user.id, user)) return reject(socket, "Only room managers can moderate chat.");
+      const messageId = String(payload?.messageId || "");
+      if (!messageId) return;
+      const result = await prisma.roomMessage.deleteMany({ where: { id: messageId, roomId: room.id } });
+      if (result.count === 0) return;
+      await audit("room.chat.delete", user.id, room.id, { messageId });
+      await broadcastRoom(io, room.slug, room.id);
+    }));
+
     socket.on("disconnect", () => {
       const roomSlug = socket.data.roomSlug;
       const user = socket.data.user;
@@ -276,6 +286,11 @@ async function getRoomContext(slug, userId) {
   return { allowed, room };
 }
 
+function canManageRoom(room, userId, user) {
+  const isAdmin = Boolean(user?.roles?.some((userRole) => userRole.role.name === "admin"));
+  return room.ownerId === userId || isAdmin || room.members.some((member) => member.userId === userId && member.canManage);
+}
+
 async function buildRoomSnapshot(roomId) {
   const room = await prisma.room.findUnique({
     where: { id: roomId },