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/kpi_item.py

@@ -0,0 +1,74 @@
+"""
+KPI 項目 Schemas
+"""
+from typing import Optional
+from pydantic import BaseModel, Field
+
+
+class KPIItemBase(BaseModel):
+    """KPI 項目基本資訊"""
+
+    name: str
+    category: str  # financial, customer, internal, learning
+    weight: int = Field(..., ge=1, le=100, description="權重百分比 (1-100)")
+
+
+class KPIItemCreate(KPIItemBase):
+    """建立 KPI 項目"""
+
+    template_id: Optional[int] = None
+    level0_criteria: Optional[str] = None
+    level1_criteria: Optional[str] = None
+    level2_criteria: Optional[str] = None
+    level3_criteria: Optional[str] = None
+    level4_criteria: Optional[str] = None
+
+
+class KPIItemUpdate(BaseModel):
+    """更新 KPI 項目"""
+
+    name: Optional[str] = None
+    category: Optional[str] = None
+    weight: Optional[int] = Field(None, ge=1, le=100)
+    level0_criteria: Optional[str] = None
+    level1_criteria: Optional[str] = None
+    level2_criteria: Optional[str] = None
+    level3_criteria: Optional[str] = None
+    level4_criteria: Optional[str] = None
+
+
+class KPIItemResponse(KPIItemBase):
+    """KPI 項目回應"""
+
+    id: int
+    sheet_id: int
+    template_id: Optional[int]
+    sort_order: int
+    level0_criteria: Optional[str]
+    level1_criteria: Optional[str]
+    level2_criteria: Optional[str]
+    level3_criteria: Optional[str]
+    level4_criteria: Optional[str]
+    self_eval_level: Optional[int]
+    self_eval_note: Optional[str]
+    final_level: Optional[int]
+    final_note: Optional[str]
+
+    class Config:
+        from_attributes = True
+
+
+class SelfEvalItem(BaseModel):
+    """自評項目"""
+
+    id: int
+    level: int = Field(..., ge=0, le=4, description="自評等級 (0-4)")
+    note: Optional[str] = None
+
+
+class ManagerEvalItem(BaseModel):
+    """主管評核項目"""
+
+    id: int
+    level: int = Field(..., ge=0, le=4, description="評核等級 (0-4)")
+    note: Optional[str] = None