refactor(core): Architecturally decouple Audio, ASR, and TTS modules

简化LLM模型路径管理。

更新LLM模型参数，调整top_p值为0.8，并添加max_tokens参数，设置为32768。

更新用户配置文件，修复logger导入路径以确保正确加载日志记录功能。

缓存user_prompts以提高性能

调整prompt的逻辑，确保展示的提示词中不包含/no_think指令

添加设置相关的API路由

调整LLM prompt的存放位置

Refactor LlamaCpp initialization to simplify parameter handling and remove unused callback manager

Introduce Apple Silicon hardware optimization and dynamic LLM configuration

Refactor project: split `main.py` functionality into modular components under `cli`, `core`, and `config`.

Update `paths.py`: improve PROJECT_ROOT resolution with `_MEIPASS` support and enhance third-party path handling.

Rename 'src/VoiceDialogue' to 'src/voice_dialogue'.