fix(ci): Add concurrency control to prevent queue buildup

沿用 AIOPS 設計:
- cancel-in-progress: true - 新 commit 自動取消舊 workflow
- workflow_dispatch 支援手動觸發
- concurrency group 隔離不同分支

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.github/workflows/cd.yaml

@@ -6,6 +6,12 @@ on:
     paths-ignore:
       - 'docs/**'
       - '*.md'
+  workflow_dispatch:
+
+# 沿用 AIOPS 設計: 新 commit 自動取消舊 workflow
+concurrency:
+  group: cd-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 
 env:
   REGISTRY: 192.168.0.110:5000

.github/workflows/ci.yaml

@@ -5,6 +5,12 @@ on:
     branches: [main]
   pull_request:
     branches: [main]
+  workflow_dispatch:
+
+# 沿用 AIOPS 設計: 新 commit 自動取消舊 workflow
+concurrency:
+  group: ci-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 
 env:
   NODE_VERSION: '20'

.github/workflows/deploy-prod.yml

@@ -46,6 +46,11 @@ on:
         default: false
         type: boolean
 
+# 沿用 AIOPS 設計: 新 commit 自動取消舊 workflow
+concurrency:
+  group: deploy-prod-${{ github.ref }}
+  cancel-in-progress: true
+
 env:
   # Harbor 金庫 (110 主機) - 使用 IP 避免 TLS 證書問題
   REGISTRY: 192.168.0.110:5000