feat: 重构MCP功能和AI服务提供者架构

backend/app/schemas/career.py

@@ -1,5 +1,5 @@
 """职业相关的Pydantic模型"""
-from pydantic import BaseModel, Field
+from pydantic import BaseModel, Field, ConfigDict
 from typing import Optional, List, Dict, Any
 from datetime import datetime
 
@@ -63,8 +63,7 @@ class CareerResponse(BaseModel):
     created_at: datetime
     updated_at: datetime
     
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class CareerListResponse(BaseModel):

backend/app/schemas/chapter.py

@@ -1,5 +1,5 @@
 """章节相关的Pydantic模型"""
-from pydantic import BaseModel, Field
+from pydantic import BaseModel, Field, ConfigDict
 from typing import Optional, List, Dict, Any
 from datetime import datetime
 
@@ -58,8 +58,7 @@ class ChapterResponse(BaseModel):
     created_at: datetime
     updated_at: datetime
     
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class ChapterListResponse(BaseModel):
@@ -142,8 +141,7 @@ class ExpansionPlanUpdate(BaseModel):
     estimated_words: Optional[int] = Field(None, description="预估字数", ge=500, le=10000)
     scenes: Optional[List[SceneData]] = Field(None, description="场景列表")
     
-    class Config:
-        json_schema_extra = {
+    model_config = ConfigDict(json_schema_extra={
             "example": {
                 "key_events": ["主角遇到挑战", "关键决策时刻"],
                 "character_focus": ["张三", "李四"],
@@ -159,7 +157,7 @@ class ExpansionPlanUpdate(BaseModel):
                     }
                 ]
             }
-        }
+        })
 
 
 class ExpansionPlanResponse(BaseModel):

backend/app/schemas/character.py

@@ -1,5 +1,5 @@
 """角色相关的Pydantic模型"""
-from pydantic import BaseModel, Field
+from pydantic import BaseModel, Field, ConfigDict
 from typing import Optional, List, Dict, Any
 from datetime import datetime
 
@@ -98,8 +98,7 @@ class CharacterResponse(CharacterBase):
     main_career_stage: Optional[int] = Field(None, description="主职业阶段")
     sub_careers: Optional[List[Dict[str, Any]]] = Field(None, description="副职业列表")
     
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class CharacterGenerateRequest(BaseModel):

backend/app/schemas/mcp_plugin.py

@@ -1,5 +1,5 @@
 """MCP插件Pydantic模式"""
-from pydantic import BaseModel, Field
+from pydantic import BaseModel, Field, ConfigDict
 from typing import Optional, Dict, Any, List
 from datetime import datetime
 
@@ -82,8 +82,7 @@ class MCPPluginResponse(BaseModel):
     # 时间戳
     created_at: datetime
 
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class MCPToolCall(BaseModel):

backend/app/schemas/outline.py

@@ -1,5 +1,5 @@
 """大纲相关的Pydantic模型"""
-from pydantic import BaseModel, Field
+from pydantic import BaseModel, Field, ConfigDict
 from typing import Optional, List, Dict, Any
 from datetime import datetime
 
@@ -103,8 +103,7 @@ class OutlineResponse(BaseModel):
     created_at: datetime
     updated_at: datetime
     
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class OutlineGenerateRequest(BaseModel):

backend/app/schemas/project.py

@@ -1,5 +1,5 @@
 """项目相关的Pydantic模型"""
-from pydantic import BaseModel, Field
+from pydantic import BaseModel, Field, ConfigDict
 from typing import Optional, Literal
 from datetime import datetime
 
@@ -59,8 +59,7 @@ class ProjectResponse(ProjectBase):
     created_at: datetime
     updated_at: datetime
     
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class ProjectListResponse(BaseModel):

backend/app/schemas/relationship.py

@@ -1,5 +1,5 @@
 """关系管理相关的Pydantic模型"""
-from pydantic import BaseModel, Field
+from pydantic import BaseModel, Field, ConfigDict
 from typing import Optional, List
 from datetime import datetime
 
@@ -17,8 +17,7 @@ class RelationshipTypeResponse(BaseModel):
     description: Optional[str] = None
     created_at: datetime
     
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 # ============ 角色关系相关 ============
@@ -62,8 +61,7 @@ class CharacterRelationshipResponse(CharacterRelationshipBase):
     created_at: datetime
     updated_at: datetime
     
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class RelationshipGraphNode(BaseModel):
@@ -127,8 +125,7 @@ class OrganizationResponse(OrganizationBase):
     created_at: datetime
     updated_at: datetime
     
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class OrganizationDetailResponse(BaseModel):
@@ -185,8 +182,7 @@ class OrganizationMemberResponse(OrganizationMemberBase):
     created_at: datetime
     updated_at: datetime
     
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class OrganizationMemberDetailResponse(BaseModel):

backend/app/schemas/writing_style.py

@@ -1,5 +1,5 @@
 """写作风格 Schema"""
-from pydantic import BaseModel, Field
+from pydantic import BaseModel, Field, ConfigDict
 from typing import Optional
 from datetime import datetime
 
@@ -48,8 +48,7 @@ class WritingStyleResponse(BaseModel):
     created_at: datetime
     updated_at: datetime
     
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class WritingStyleListResponse(BaseModel):