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/models/__init__.py

@@ -0,0 +1,27 @@
+"""
+SQLAlchemy Models
+"""
+from app.models.department import Department
+from app.models.employee import Employee
+from app.models.kpi_period import KPIPeriod
+from app.models.kpi_template import KPITemplate, KPIPreset, KPIPresetItem
+from app.models.kpi_sheet import KPISheet
+from app.models.kpi_item import KPIItem
+from app.models.kpi_review_log import KPIReviewLog
+from app.models.notification import Notification, NotificationPreference
+from app.models.dashboard_alert import DashboardAlert
+
+__all__ = [
+    "Department",
+    "Employee",
+    "KPIPeriod",
+    "KPITemplate",
+    "KPIPreset",
+    "KPIPresetItem",
+    "KPISheet",
+    "KPIItem",
+    "KPIReviewLog",
+    "Notification",
+    "NotificationPreference",
+    "DashboardAlert",
+]