UUID-based sidechat reuse for heartbeat\n\n- Add url command to muse-chat-api.py\n- Dispatcher: reuse_key -> thread UUID mapping in job-sidechats.json\n- Capture UUID after first send, reuse on subsequent runs\n- Fixes multi-spawn bug (was matching by auto-generated title)

bin/muse-chat-api.py

@@ -378,6 +378,11 @@ def ev1(ws, expr, await_p=False):
     return None
 
 
+def cmd_url(ws):
+    """Print current browser URL."""
+    url = ev(ws, "window.location.href")
+    print(url)
+
 def cmd_upload(ws, filepath, message=None, dry_run=False):
     """Attach a file to the chat composer via CDP DOM.setFileInputFiles.
 
@@ -478,7 +483,7 @@ def main():
     p = argparse.ArgumentParser()
     p.add_argument('--account', required=True, choices=list(ACCOUNTS.keys()),
                    help='Agent name (matches node, profile, ACCOUNTS.md)')
-    p.add_argument('command', choices=['send', 'messages', 'wait', 'approvals', 'sidechat', 'upload'])
+    p.add_argument('command', choices=['send', 'messages', 'wait', 'approvals', 'sidechat', 'upload', 'url'])
     p.add_argument('arg', nargs='*', default=[])
     p.add_argument('--dry-run', action='store_true',
                  help='upload: stage attachment without sending')
@@ -524,6 +529,8 @@ def main():
             else:
                 print(f"ERROR: unknown sidechat subcommand: {sub}", file=sys.stderr)
                 sys.exit(1)
+        elif args.command == 'url':
+            cmd_url(ws)
         elif args.command == 'upload':
             if not args.arg:
                 print("ERROR: upload requires a filepath", file=sys.stderr)