Add backend, worker, deploy docker-compose and CI skeleton

backend/app/main.py

@@ -0,0 +1,11 @@
+from fastapi import FastAPI
+
+app = FastAPI(title="NetMapper API", version="0.1.0")
+
+@app.get("/health")
+def health():
+    return {"status": "ok"}
+
+@app.get("/api/v1")
+def root():
+    return {"service": "netmapper-backend", "version": "0.1.0"}

backend/requirements.txt

@@ -0,0 +1,6 @@
+fastapi==0.115.0
+uvicorn[standard]==0.30.6
+pydantic==2.9.2
+sqlalchemy==2.0.35
+psycopg[binary]==3.2.3
+redis==5.1.1