feat(garage): add services for S3, Admin API, and internal discovery

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: mitchross

infrastructure/storage/garage/backend/service-admin.yaml

@@ -0,0 +1,14 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: garage-admin
+  namespace: garage
+spec:
+  type: ClusterIP
+  selector:
+    app: garage
+  ports:
+  - name: admin-api
+    port: 3903
+    targetPort: 3903
+    protocol: TCP

infrastructure/storage/garage/backend/service-internal.yaml

@@ -0,0 +1,14 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: garage-internal
+  namespace: garage
+spec:
+  clusterIP: None  # Headless service for StatefulSet
+  selector:
+    app: garage
+  ports:
+  - name: rpc
+    port: 3901
+    targetPort: 3901
+    protocol: TCP

infrastructure/storage/garage/backend/service-s3.yaml

@@ -0,0 +1,14 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: garage-s3
+  namespace: garage
+spec:
+  type: ClusterIP
+  selector:
+    app: garage
+  ports:
+  - name: s3-api
+    port: 3900
+    targetPort: 3900
+    protocol: TCP