feat: indie status page MVP -- FastAPI + SQLite

- 8 DB models (services, incidents, monitors, subscribers, etc.)
- Full CRUD API for services, incidents, monitors
- Public status page with live data
- Incident detail page with timeline
- API key authentication
- Uptime monitoring scheduler
- 13 tests passing
- TECHNICAL_DESIGN.md with full spec

app/models/__init__.py

@@ -0,0 +1,21 @@
+from app.models.models import (
+    Service,
+    Incident,
+    IncidentUpdate,
+    Monitor,
+    MonitorResult,
+    Subscriber,
+    NotificationLog,
+    SiteSetting,
+)
+
+__all__ = [
+    "Service",
+    "Incident",
+    "IncidentUpdate",
+    "Monitor",
+    "MonitorResult",
+    "Subscriber",
+    "NotificationLog",
+    "SiteSetting",
+]