devops: 割接后 server 部署轨道切为仅 Ali 主轨（移除 EC2 轨）

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JJ1g8XV1YhhmHRzhwWEW7o

.gitea/workflows/deploy-server.yml

@@ -36,22 +36,9 @@ jobs:
           GITEA_REPOSITORY: ${{ gitea.repository }}
         run: sh scripts/ci/release-server.sh "${{ gitea.ref_name }}"
 
-      - name: Deploy → EC2
-        env:
-          FORGEJO_TOKEN: ${{ secrets.FORGEJO_TOKEN }}
-          FORGEJO_URL: ${{ secrets.FORGEJO_URL }}
-          GITEA_REPOSITORY: ${{ gitea.repository }}
-          DEPLOY_TARGET: ec2
-          EC2_SSH_KEY: ${{ secrets.EC2_SSH_KEY }}
-          EC2_HOST: ${{ secrets.EC2_HOST }}
-          EC2_USER: ${{ secrets.EC2_USER }}
-        run: sh scripts/ci/deploy-server.sh "${{ gitea.ref_name }}"
-
-      # 迁移期影子目标：部署到阿里机（只换二进制 + reload 独立 nginx，jiu 保持 stopped）。
-      # if: always() → EC2 失败也照样尝试；continue-on-error → 阿里失败不让流水线变红。
-      - name: Deploy → Ali (migration shadow)
-        if: always()
-        continue-on-error: true
+      # 2026-07-02 割接后阿里机即线上主轨（EC2 jiu 已停用，Deploy→EC2 轨已移除，
+      # 绝不能再部署 EC2——那会把停用的后端对着过时旧库重新拉起）。
+      - name: Deploy → Ali
         env:
           FORGEJO_TOKEN: ${{ secrets.FORGEJO_TOKEN }}
           FORGEJO_URL: ${{ secrets.FORGEJO_URL }}