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/main.py

@@ -0,0 +1,97 @@
+"""
+KPI 管理系統 - FastAPI 主程式
+"""
+from fastapi import FastAPI, Request
+from fastapi.middleware.cors import CORSMiddleware
+from fastapi.responses import JSONResponse
+
+from app.core.config import settings
+from app.core.database import init_db
+from app.api import (
+    auth_router,
+    kpi_router,
+    dashboard_router,
+    notifications_router,
+    llm_router,
+    gitea_router,
+)
+
+# 建立 FastAPI 應用程式
+app = FastAPI(
+    title=settings.APP_NAME,
+    description="KPI 管理系統 API - 整合 Ollama LLM 與 Gitea 版本控制",
+    version="1.0.0",
+    docs_url="/docs",
+    redoc_url="/redoc",
+)
+
+# CORS 設定
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],  # 生產環境應限制
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+
+# 全域例外處理
+@app.exception_handler(Exception)
+async def global_exception_handler(request: Request, exc: Exception):
+    """全域例外處理器"""
+    return JSONResponse(
+        status_code=500,
+        content={
+            "error": {
+                "code": "INTERNAL_ERROR",
+                "message": "內部伺服器錯誤",
+                "details": str(exc) if settings.DEBUG else None,
+            }
+        },
+    )
+
+
+# 註冊路由
+app.include_router(auth_router)
+app.include_router(kpi_router)
+app.include_router(dashboard_router)
+app.include_router(notifications_router)
+app.include_router(llm_router)
+app.include_router(gitea_router)
+
+
+# 啟動事件
+@app.on_event("startup")
+async def startup_event():
+    """應用程式啟動時初始化資料庫"""
+    init_db()
+
+
+# 健康檢查
+@app.get("/health")
+def health_check():
+    """健康檢查端點"""
+    return {"status": "healthy", "app": settings.APP_NAME}
+
+
+# 根路徑
+@app.get("/")
+def root():
+    """API 根路徑"""
+    return {
+        "app": settings.APP_NAME,
+        "version": "1.0.0",
+        "docs": "/docs",
+        "features": [
+            "KPI 管理",
+            "員工績效考核",
+            "Ollama LLM 整合",
+            "Gitea 版本控制",
+        ],
+    }
+
+
+if __name__ == "__main__":
+    import uvicorn
+
+    uvicorn.run("app.main:app", host="0.0.0.0", port=8000, reload=True)