Establish clean homelab infrastructure baseline

Reorganize the brownfield repository, remove retired and generated artifacts, harden ignore rules, and record the GitOps/IaC redesign.

apps/http-echo/deployment.yaml

@@ -0,0 +1,24 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: http-echo
+  namespace: default
+  labels:
+    app: http-echo
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: http-echo
+  template:
+    metadata:
+      labels:
+        app: http-echo
+    spec:
+      containers:
+        - name: http-echo
+          image: hashicorp/http-echo:0.2.3
+          args:
+            - '-text=hello from contour gateway'
+          ports:
+            - containerPort: 5678