feat: add .gitignore and apps/template for new apps

apps/template/manifests/app-ingress.yaml

@@ -0,0 +1,24 @@
+# Ingress 範本 - Traefik
+# 使用方式：將 {{APP_NAME}}、{{HOST}} 替換為實際值
+
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: {{APP_NAME}}-ingress
+  labels:
+    app: {{APP_NAME}}
+  annotations:
+    traefik.ingress.kubernetes.io/router.entrypoints: web, websecure
+spec:
+  ingressClassName: traefik
+  rules:
+    - host: {{HOST}}
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: {{APP_NAME}}-service
+                port:
+                  number: {{PORT|8080}}