Remote Control: messages from web/mobile never dispatched to CLI (spawn worktree mode)

Bug Description

Messages sent from both the Claude web app (claude.ai/code) and the Claude mobile app (iOS) are never dispatched to the local CLI when using claude remote-control in spawn/worktree mode. The verbose output shows zero activity — no log lines appear when messages are sent remotely.

Steps to Reproduce

1. Start Remote Control in spawn worktree mode:

``
claude remote-control --verbose --spawn=worktree
``

1. CLI shows ·✔︎· Connected · projectaura with Capacity: 0/32
2. Open https://claude.ai/code?environment=<env_id> in browser
3. Send a message from the web interface
4. No activity appears in the CLI verbose output
5. Repeated with the Claude iOS app — same result
6. Eventually the CLI shows "retry connection"

Expected Behavior

Messages sent from the web or mobile app should appear in the CLI verbose output and spawn a new worktree session.

Actual Behavior

• CLI shows as connected with green status
• Messages sent from web/mobile are accepted by the UI (no error shown)
• No log lines appear in the CLI verbose output
• No sessions are spawned
• Connection eventually drops to "retry connection" state
• Restarting claude remote-control reconnects but the same behavior persists

Environment

• Claude Code version: 2.1.98
• Node.js: v25.9.0
• macOS: 26.4 (Build 25E246)
• Architecture: ARM64 (Apple Silicon — Mac Studio M1 Max)
• Kernel: Darwin 25.4.0
• Auth method: OAuth (firstParty) via claude.ai subscription
• Spawn mode: worktree
• Remote clients tested: claude.ai/code (browser), Claude iOS app

Possibly Related

• #38049 — Dispatch stuck on "Brewing..." / messages not reaching CLI
• #34255 — Automatic reconnection doesn't work, connection drops silently
• #34581 — Questions/prompts stop appearing in app mid-session