Initial commit: KPI Management System Backend

Features:
- FastAPI backend with JWT authentication
- MySQL database with SQLAlchemy ORM
- KPI workflow: draft → pending → approved → evaluation → completed
- Ollama LLM API integration for AI features
- Gitea API integration for version control
- Complete API endpoints for KPI, dashboard, notifications

Tables: KPI_D_* prefix naming convention

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/schemas/auth.py

@@ -0,0 +1,44 @@
+"""
+認證 Schemas
+"""
+from typing import Optional
+from pydantic import BaseModel, EmailStr
+
+
+class LoginRequest(BaseModel):
+    """登入請求"""
+
+    employee_no: str
+    password: str
+
+
+class TokenResponse(BaseModel):
+    """Token 回應"""
+
+    access_token: str
+    refresh_token: str
+    token_type: str = "bearer"
+
+
+class RefreshTokenRequest(BaseModel):
+    """更新 Token 請求"""
+
+    refresh_token: str
+
+
+class UserInfo(BaseModel):
+    """使用者資訊"""
+
+    id: int
+    employee_no: str
+    name: str
+    email: str
+    department_id: int
+    department_name: str
+    job_title: Optional[str]
+    role: str
+    is_manager: bool
+    is_admin: bool
+
+    class Config:
+        from_attributes = True