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/api/settings.py

@@ -0,0 +1,36 @@
+"""Site settings API endpoints."""
+
+from fastapi import APIRouter, Depends
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.dependencies import get_db, verify_api_key
+from app.models.models import SiteSetting
+
+router = APIRouter()
+
+
+@router.get("/")
+async def list_settings(db: AsyncSession = Depends(get_db)):
+    """List all site settings."""
+    result = await db.execute(select(SiteSetting))
+    settings = result.scalars().all()
+    return {s.key: s.value for s in settings}
+
+
+@router.patch("/")
+async def update_settings(
+    updates: dict[str, str],
+    db: AsyncSession = Depends(get_db),
+    api_key: str = Depends(verify_api_key),
+):
+    """Update site settings (key-value pairs)."""
+    for key, value in updates.items():
+        result = await db.execute(select(SiteSetting).where(SiteSetting.key == key))
+        setting = result.scalar_one_or_none()
+        if setting:
+            setting.value = value
+        else:
+            db.add(SiteSetting(key=key, value=value))
+    await db.flush()
+    return {"message": "Settings updated"}