feat(audiobook): implement audiobook project management features

qwen3-tts-backend/schemas/audiobook.py

@@ -0,0 +1,68 @@
+from datetime import datetime
+from typing import Optional, List
+from pydantic import BaseModel, ConfigDict
+
+
+class AudiobookProjectCreate(BaseModel):
+    title: str
+    source_type: str
+    source_text: Optional[str] = None
+
+
+class AudiobookProjectResponse(BaseModel):
+    id: int
+    user_id: int
+    title: str
+    source_type: str
+    status: str
+    llm_model: Optional[str] = None
+    error_message: Optional[str] = None
+    created_at: datetime
+    updated_at: datetime
+
+    model_config = ConfigDict(from_attributes=True)
+
+
+class AudiobookCharacterResponse(BaseModel):
+    id: int
+    project_id: int
+    name: str
+    description: Optional[str] = None
+    instruct: Optional[str] = None
+    voice_design_id: Optional[int] = None
+
+    model_config = ConfigDict(from_attributes=True)
+
+
+class AudiobookProjectDetail(AudiobookProjectResponse):
+    characters: List[AudiobookCharacterResponse] = []
+
+
+class AudiobookCharacterUpdate(BaseModel):
+    voice_design_id: int
+
+
+class AudiobookSegmentResponse(BaseModel):
+    id: int
+    project_id: int
+    chapter_index: int
+    segment_index: int
+    character_id: int
+    character_name: Optional[str] = None
+    text: str
+    audio_path: Optional[str] = None
+    status: str
+
+    model_config = ConfigDict(from_attributes=True)
+
+
+class LLMConfigUpdate(BaseModel):
+    base_url: str
+    api_key: str
+    model: str
+
+
+class LLMConfigResponse(BaseModel):
+    base_url: Optional[str] = None
+    model: Optional[str] = None
+    has_key: bool