chore(deploy): 简化 nginx 路由 + 自动部署 nginx config + 删除 .github workflows

- nginx: /app/ → Flutter，/ 兜底 → 营销站，移除零散 location 块
- deploy.yml: 每次部署自动 scp nginx-jiu.conf 到服务器并 nginx -t reload
- deploy.yml: Release 附件新增 configs.tar.gz（nginx/systemd/compose 配置）
- 删除 .github/workflows/（已全部迁移到 .gitea/）

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitea/workflows/deploy.yml

@@ -36,6 +36,13 @@ jobs:
           FORGEJO_URL: ${{ secrets.FORGEJO_URL }}
         run: |
           tar -czf web.tar.gz -C client/build web
+          tar -czf configs.tar.gz \
+            deploy/nginx-jiu.conf \
+            deploy/jiu.service \
+            deploy/production.env.template \
+            deploy/setup-ec2.sh \
+            deploy/docker-compose.yml \
+            deploy/docker-compose.jiu.yml
           VERSION="v$(date +%Y%m%d.%H%M)"
           COMMIT="${{ gitea.sha }}"
           COMMIT_MSG=$(git log -1 --pretty="%s" HEAD)
@@ -53,6 +60,8 @@ jobs:
             -H "Authorization: token ${FORGEJO_TOKEN}" -F "attachment=@backend/jiu-server"
           curl -sf -X POST "${FORGEJO_URL}/api/v1/repos/${{ gitea.repository }}/releases/${RELEASE_ID}/assets" \
             -H "Authorization: token ${FORGEJO_TOKEN}" -F "attachment=@web.tar.gz"
+          curl -sf -X POST "${FORGEJO_URL}/api/v1/repos/${{ gitea.repository }}/releases/${RELEASE_ID}/assets" \
+            -H "Authorization: token ${FORGEJO_TOKEN}" -F "attachment=@configs.tar.gz"
           echo "Release ${VERSION} created"
 
       - name: Setup SSH
@@ -72,6 +81,8 @@ jobs:
             client/build/web/ ${EC2_USER}@${EC2_HOST}:/tmp/jiu-web-new/
           rsync -avz --delete -e "ssh -i ~/.ssh/ec2_deploy.pem" \
             web/ ${EC2_USER}@${EC2_HOST}:/tmp/jiu-marketing-new/
+          scp -O -i ~/.ssh/ec2_deploy.pem deploy/nginx-jiu.conf \
+            ${EC2_USER}@${EC2_HOST}:/tmp/nginx-jiu.conf
           ssh -i ~/.ssh/ec2_deploy.pem ${EC2_USER}@${EC2_HOST} << 'ENDSSH'
             sudo systemctl stop jiu
             cp /tmp/jiu-server /opt/jiu/backend/jiu-server
@@ -87,7 +98,8 @@ jobs:
             mkdir -p /opt/jiu/marketing
             rsync -a --delete /tmp/jiu-marketing-new/ /opt/jiu/marketing/
             rm -rf /tmp/jiu-marketing-new
-            sudo nginx -s reload
+            sudo cp /tmp/nginx-jiu.conf /etc/nginx/conf.d/jiu.conf
+            sudo nginx -t && sudo nginx -s reload
           ENDSSH
 
       - name: Cleanup SSH key