v1.13.9

🐛 修复 (Bug Fixes)

• fix: fix tts custom openai voice rendering (e10fe67)
• fix: change LLM message role from 'model' to 'assistant' for API compatibility (345c0c2)

📚 文档 (Documentation)

• docs: fix docker run volume mount quoting for paths with spaces (974a988)
• docs: fix FAQ ordering - delete button question is now #6 (8af85ca)
• docs: fix docker-compose volume mount syntax and add security notes (03c3e77)

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完整变更日志: v1.13.8...v1.13.9