Add the agent scaffold, mobile web UI, voice auto-leave, and text notifications

poc/src/message-cache.ts

@@ -61,6 +61,27 @@ export class MessageCache {
         return merged;
     }
 
+    /** Update cached content after an edit. */
+    edit(channelId: string, messageId: string, content: string): boolean {
+        const messages = this.get(channelId);
+        const message = messages.find(item => item.id === messageId);
+        if (!message) return false;
+
+        message.content = content;
+        this.write(channelId, messages);
+        return true;
+    }
+
+    /** Drop a deleted message from the cache. */
+    remove(channelId: string, messageId: string): boolean {
+        const messages = this.get(channelId);
+        const next = messages.filter(item => item.id !== messageId);
+        if (next.length === messages.length) return false;
+
+        this.write(channelId, next);
+        return true;
+    }
+
     private file(channelId: string): string {
         return join(this.dir, `${channelId}.json`);
     }