docs: add Windows Docker TTS-ASR troubleshooting guide

[ChuChenlyc]

Summary

• Add a Windows Docker troubleshooting guide for TTS/ASR connection failures.
• Document the expected ASR hostname and the network alias required when local Compose service names are customized.
• Document a validation sequence for Compose YAML, container readiness, DNS, TCP, WebSocket, bind mounts, and the preprocess API.
• Explain why the SQLite binding error is a secondary symptom of failed training.

Root cause

The TTS image connects to FunASR at duix-avatar-asr:10095. A local Compose file that renames the ASR service to heygem-asr without adding the duix-avatar-asr network alias causes the WebSocket connection to fail. The resulting NoneType send error is later followed by a misleading SQLite binding error when the client persists an invalid voice ID.

The guide also covers the Windows host-path versus container-path distinction that can produce file not exists errors.

Validation

• Checked the documented commands against Docker Desktop on Windows.
• Verified the guide against the failure sequence reported in Error: Error invoking remote method 'model/addModel’: Error: socket hang up #11 and Error: Error invoking remote method 'model/addModel: TypeError: SQLite3 can only b ind numbers, strings, bigints, buffers,and null #66.
• Documentation-only change; no application/runtime code was modified.

Closes #619