Initial InfraPulse scaffold

backend/app/main.py

@@ -0,0 +1,47 @@
+from contextlib import asynccontextmanager
+from collections.abc import AsyncIterator
+import logging
+
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+from sqlalchemy.exc import SQLAlchemyError
+
+from app.api import alerts, assets, auth, health, monitors, notifications
+from app.core.config import settings
+from app.db.session import SessionLocal
+from app.services.bootstrap import ensure_initial_admin
+
+logger = logging.getLogger(__name__)
+
+
+@asynccontextmanager
+async def lifespan(_: FastAPI) -> AsyncIterator[None]:
+    try:
+        with SessionLocal() as db:
+            ensure_initial_admin(db)
+    except SQLAlchemyError as exc:
+        logger.warning("Initial admin bootstrap skipped because the database is unavailable: %s", exc)
+    yield
+
+
+app = FastAPI(
+    title="InfraPulse API",
+    version="0.1.0",
+    description="Self-hosted infrastructure monitoring API",
+    lifespan=lifespan,
+)
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=[str(settings.frontend_url)],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+app.include_router(health.router)
+app.include_router(auth.router)
+app.include_router(assets.router)
+app.include_router(monitors.router)
+app.include_router(alerts.router)
+app.include_router(notifications.router)