feat: Implement core chat application UI, including chat, voice, members, DMs, and shared components.

convex/voiceState.ts

@@ -229,6 +229,35 @@ export const afkMove = mutation({
   },
 });
 
+export const disconnectUser = mutation({
+  args: {
+    actorUserId: v.id("userProfiles"),
+    targetUserId: v.id("userProfiles"),
+  },
+  returns: v.null(),
+  handler: async (ctx, args) => {
+    const roles = await getRolesForUser(ctx, args.actorUserId);
+    const canMove = roles.some(
+      (role) => (role.permissions as Record<string, boolean>)?.["move_members"]
+    );
+    if (!canMove) {
+      throw new Error("You don't have permission to disconnect members");
+    }
+
+    // Clear viewers watching the target user's stream
+    const allStates = await ctx.db.query("voiceStates").collect();
+    for (const s of allStates) {
+      if (s.watchingStream === args.targetUserId) {
+        await ctx.db.patch(s._id, { watchingStream: undefined });
+      }
+    }
+
+    await removeUserVoiceStates(ctx, args.targetUserId);
+
+    return null;
+  },
+});
+
 export const moveUser = mutation({
   args: {
     actorUserId: v.id("userProfiles"),