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

worker/app/main.py

@@ -0,0 +1,5 @@
+def main():
+    print("NetMapper worker bootstrap")
+
+if __name__ == "__main__":
+    main()

worker/requirements.txt

@@ -0,0 +1,4 @@
+redis==5.1.1
+pydantic==2.9.2
+python-nmap==0.7.1
+pysnmp==7.1.15