CHORE(app): initial configuration

- Add initial app settings
- Configure base deployment

deploy/k8s/overlays/prod/deployment-patch.yaml

@@ -0,0 +1,20 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: todo-app
+  labels:
+    environment: production
+spec:
+  replicas: 1
+  template:
+    spec:
+      containers:
+        - name: todo-app
+          resources:
+            requests:
+              memory: "120Mi"
+              cpu: "50m"
+            limits:
+              memory: "230Mi"
+              cpu: "150m"
+