feat/ 添加app-expo三种环境切换，待测试 调整tts

api/app/core/config.py

@@ -59,8 +59,10 @@ class Settings(BaseSettings):
     tencent_secret_key: str = ""
     tencent_asr_app_id: str = ""
 
-    # ── OpenAI (TTS) ─────────────────────────────────────────
+    # ── TTS (openai | tencent) ───────────────────────────────
+    tts_provider: str = "tencent"
     openai_api_key: str = ""
+    tts_voice_type: int = 603004  # Tencent 音色 ID，见 https://cloud.tencent.com/document/product/1073/92668
 
     # ── WeChat Pay ───────────────────────────────────────────
     wechat_pay_app_id: str = ""

api/app/core/dependencies.py

@@ -60,6 +60,15 @@ def get_llm_provider() -> LLMProvider:
 
 @lru_cache
 def get_tts_provider() -> TTSProvider:
+    if settings.tts_provider == "tencent":
+        from app.adapters.tts.tencent_tts import TencentTTSProvider
+
+        return TencentTTSProvider(
+            secret_id=settings.tencent_secret_id,
+            secret_key=settings.tencent_secret_key,
+            voice_type=settings.tts_voice_type,
+            codec="mp3",
+        )
     from app.adapters.tts.openai_tts import OpenAITTSProvider
 
     return OpenAITTSProvider(api_key=settings.openai_api_key)