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/schemas/admin.py

@@ -0,0 +1,53 @@
+from datetime import datetime
+from typing import Optional
+
+from pydantic import BaseModel, Field, field_validator
+
+
+class AdminUserOut(BaseModel):
+    id: int
+    phone: str
+    name: str
+    avatar: str = ""
+    subject: str = ""
+    school: str = ""
+    grade: str = ""
+    role: str = "teacher"
+    is_active: bool = True
+    credits: int = 0
+    created_at: datetime | None = None
+
+    @field_validator("avatar", "subject", "school", "grade", "name", "role", mode="before")
+    @classmethod
+    def _none_to_empty(cls, v):
+        return "" if v is None else v
+
+    model_config = {"from_attributes": True}
+
+
+class AdminUserUpdate(BaseModel):
+    role: Optional[str] = None
+    is_active: Optional[bool] = None
+    name: Optional[str] = None
+
+
+class AdminGrantCredits(BaseModel):
+    amount: int = Field(..., gt=0, le=10000, description="积分数量")
+
+
+class AdminDashboardOut(BaseModel):
+    total_users: int = 0
+    active_users: int = 0
+    admin_users: int = 0
+    total_resources: int = 0
+    public_resources: int = 0
+    total_coursewares: int = 0
+    total_animations: int = 0
+    total_exercises: int = 0
+    total_lesson_plans: int = 0
+    total_exams: int = 0
+    total_views: int = 0
+    total_downloads: int = 0
+    total_favorites: int = 0
+    total_credits_used: int = 0
+    new_users_today: int = 0