Files
yan5xu fdacdb8586 fix: CDP 503 returns diagnostics immediately instead of 30s timeout
When Chrome disconnects or CDP connection fails, the daemon now:
- Returns 503 immediately instead of waiting 30 seconds
- Includes CDP target address, failure reason, and remediation hint
- Stores lastError in CdpConnection for diagnostic context

Before: {"error":"CDP connection timeout"} after 30s wait
After:  {"error":"Chrome not connected (CDP at host:port)","reason":"...","hint":"..."} immediately

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-03 10:33:28 +08:00
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