智教助手平台：完整初始化

- 前端：Vue3 + TS + Element Plus，24 个页面路由（课件/组题/教案/动画/思维导图/作文批改/命题/课堂/资源/社区等）
- 后端：FastAPI + SQLAlchemy + SQLite，17 个路由模块，AI 服务层含降级模板
- AI：glm-5.x 推理模型已禁用思维链，确保输出真实内容
- 修复：ai_service 两处请求体注入 enable_thinking/thinking disabled
- 测试账号：13900999999 / test1234

backend/routers/mindmap.py

@@ -0,0 +1,108 @@
+from typing import Optional
+from fastapi import APIRouter, Depends, HTTPException, Query, Request
+from sqlalchemy.orm import Session
+from database import get_db
+from models.mindmap import MindMap
+from models.user import User
+from schemas.mindmap import (
+    MindMapGenerate, MindMapCreate, MindMapUpdate, MindMapOut,
+)
+from services.credits import credits_payload, spend_credits
+from services.limiter import limiter
+from services.auth import get_current_user
+from services.ai_service import AIService
+
+router = APIRouter(prefix="/api/mind-maps", tags=["思维导图管理"])
+ai_service = AIService()
+
+
+@limiter.limit("10/minute")
+@router.post("/ai-generate", response_model=dict)
+async def ai_generate_mind_map(
+    request: Request,
+    data: MindMapGenerate,
+    current_user: User = Depends(get_current_user),
+    db: Session = Depends(get_db),
+):
+    account = spend_credits(db, current_user, "mindmap_generate", f"生成思维导图：{data.topic[:80]}")
+    db.commit()
+    result = await ai_service.generate_mindmap(
+        topic=data.topic, subject=data.subject, grade=data.grade,
+    )
+    return {"success": True, "data": result, "credits": credits_payload(account, "mindmap_generate")}
+
+
+@router.post("/", response_model=MindMapOut, status_code=201)
+def create_mind_map(
+    data: MindMapCreate,
+    current_user: User = Depends(get_current_user),
+    db: Session = Depends(get_db),
+):
+    item = MindMap(user_id=current_user.id, **data.model_dump())
+    db.add(item)
+    db.commit()
+    db.refresh(item)
+    return item
+
+
+@router.get("/", response_model=list[MindMapOut])
+def list_mind_maps(
+    keyword: Optional[str] = None,
+    skip: int = Query(0, ge=0),
+    limit: int = Query(20, ge=1, le=100),
+    current_user: User = Depends(get_current_user),
+    db: Session = Depends(get_db),
+):
+    query = db.query(MindMap).filter(MindMap.user_id == current_user.id)
+    if keyword:
+        query = query.filter(MindMap.title.contains(keyword))
+    return query.order_by(MindMap.updated_at.desc()).offset(skip).limit(limit).all()
+
+
+@router.get("/{map_id}", response_model=MindMapOut)
+def get_mind_map(
+    map_id: int,
+    current_user: User = Depends(get_current_user),
+    db: Session = Depends(get_db),
+):
+    item = db.query(MindMap).filter(
+        MindMap.id == map_id, MindMap.user_id == current_user.id,
+    ).first()
+    if not item:
+        raise HTTPException(status_code=404, detail="思维导图不存在")
+    return item
+
+
+@router.put("/{map_id}", response_model=MindMapOut)
+def update_mind_map(
+    map_id: int,
+    data: MindMapUpdate,
+    current_user: User = Depends(get_current_user),
+    db: Session = Depends(get_db),
+):
+    item = db.query(MindMap).filter(
+        MindMap.id == map_id, MindMap.user_id == current_user.id,
+    ).first()
+    if not item:
+        raise HTTPException(status_code=404, detail="思维导图不存在")
+    for key, value in data.model_dump(exclude_unset=True).items():
+        setattr(item, key, value)
+    db.commit()
+    db.refresh(item)
+    return item
+
+
+@router.delete("/{map_id}", status_code=204)
+def delete_mind_map(
+    map_id: int,
+    current_user: User = Depends(get_current_user),
+    db: Session = Depends(get_db),
+):
+    item = db.query(MindMap).filter(
+        MindMap.id == map_id, MindMap.user_id == current_user.id,
+    ).first()
+    if not item:
+        raise HTTPException(status_code=404, detail="思维导图不存在")
+    db.delete(item)
+    db.commit()
+    return None