INIT(api): add FastAPI application

- Initialize FastAPI project structure
- Add basic API configuration

deploy/k8s/base/service.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: joossam-service
+  labels:
+    app: joossam-app
+spec:
+  type: ClusterIP
+  ports:
+    - name: http
+      port: 80
+      targetPort: 8000
+      protocol: TCP
+  selector:
+    app: joossam-app