feat: Implement voice design management with CRUD operations and integrate into frontend

qwen3-tts-backend/schemas/tts.py

@@ -30,7 +30,8 @@ class CustomVoiceRequest(BaseModel):
 class VoiceDesignRequest(BaseModel):
     text: str = Field(..., min_length=1, max_length=1000)
     language: str = Field(default="Auto")
-    instruct: str = Field(..., min_length=1)
+    instruct: Optional[str] = Field(default=None, min_length=1)
+    saved_design_id: Optional[int] = None
     max_new_tokens: Optional[int] = Field(default=2048, ge=128, le=4096)
     temperature: Optional[float] = Field(default=0.9, ge=0.1, le=2.0)
     top_k: Optional[int] = Field(default=50, ge=1, le=100)

qwen3-tts-backend/schemas/voice_design.py

@@ -0,0 +1,34 @@
+from typing import Optional, Dict, Any, List
+from datetime import datetime
+from pydantic import BaseModel, Field
+
+class VoiceDesignCreate(BaseModel):
+    name: str = Field(..., min_length=1, max_length=100)
+    instruct: str = Field(..., min_length=1)
+    backend_type: str = Field(..., pattern="^(local|aliyun)$")
+    aliyun_voice_id: Optional[str] = None
+    meta_data: Optional[Dict[str, Any]] = None
+    preview_text: Optional[str] = None
+
+class VoiceDesignUpdate(BaseModel):
+    name: Optional[str] = Field(None, min_length=1, max_length=100)
+
+class VoiceDesignResponse(BaseModel):
+    id: int
+    user_id: int
+    name: str
+    backend_type: str
+    instruct: str
+    aliyun_voice_id: Optional[str]
+    meta_data: Optional[Dict[str, Any]]
+    preview_text: Optional[str]
+    created_at: datetime
+    last_used: datetime
+    use_count: int
+
+    class Config:
+        from_attributes = True
+
+class VoiceDesignListResponse(BaseModel):
+    designs: List[VoiceDesignResponse]
+    total: int