test四轮完成的版本，并入了刘盼的老师模块

scheme/wl_teacher_scheme.py

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+from pydantic import BaseModel, Field, ConfigDict
+from datetime import datetime
+from typing import Optional
+
+# ---------- 请求模型 ----------
+class TeacherCreate(BaseModel):
+    t_no: Optional[str] = Field(None, max_length=20, description="老师编号，不传则自动生成")
+    t_name: str = Field(..., max_length=50, description="老师姓名")
+    t_phone: Optional[str] = Field(None, max_length=20, description="电话")
+    t_email: Optional[str] = Field(None, max_length=20, description="邮箱")
+    class_id: int = Field(..., description="班级ID")
+    role: str = Field(..., max_length=50, description="角色")
+
+class TeacherUpdate(BaseModel):
+    t_no: Optional[str] = Field(None, max_length=20)
+    t_name: Optional[str] = Field(None, max_length=50)
+    t_phone: Optional[str] = Field(None, max_length=20)
+    t_email: Optional[str] = Field(None, max_length=20)
+    class_id: Optional[int] = None
+    role: Optional[str] = Field(None, max_length=50)
+
+# ---------- 响应模型 ----------
+class TeacherResponse(BaseModel):
+    t_id: int
+    t_no: str
+    t_name: str
+    class_id: int
+    role: str
+    t_phone: Optional[str]
+    t_email: Optional[str]
+
+    model_config = ConfigDict(from_attributes=True)
+
+