ci: 添加 Gitea Actions workflow（推送自动构建/部署）

- .gitea/workflows/deploy.yaml
- 支持 master/production 和 beta/development 分支
- 自动构建→测试→备份→部署→迁移→重启→健康检查

.gitea/workflows/deploy.yaml

@@ -0,0 +1,95 @@
+name: Deploy Backend
+on:
+  push:
+    branches:
+      - master
+      - beta
+
+jobs:
+  deploy:
+    runs-on: ubuntu
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Build (release)
+        run: cargo build --release
+        env:
+          APP_ENV: ${{ github.ref_name == 'master' && 'production' || 'development' }}
+
+      - name: Run tests
+        run: cargo test
+
+      - name: Determine target directories
+        id: target
+        run: |
+          if [ "${{ github.ref_name }}" = "master" ]; then
+            echo "REMOTE_DIR=/root/rust/rust_backend" >> $GITHUB_OUTPUT
+            echo "SERVICE=rust-backend.service" >> $GITHUB_OUTPUT
+          else
+            echo "REMOTE_DIR=/root/rust/rust_backend_dev" >> $GITHUB_OUTPUT
+            echo "SERVICE=rust-backend-dev.service" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Backup old binary
+        run: |
+          REMOTE_DIR="${{ steps.target.outputs.REMOTE_DIR }}"
+          if [ -f "$REMOTE_DIR/rust-backend" ]; then
+            BACKUP="$REMOTE_DIR/rust-backend.backup.$(date +%Y%m%d_%H%M%S)"
+            cp "$REMOTE_DIR/rust-backend" "$BACKUP"
+            echo "$BACKUP" > "$REMOTE_DIR/.last_deployed"
+            echo "备份已创建: $BACKUP"
+          fi
+
+      - name: Backup database
+        run: |
+          source /root/rust/rust_backend/.env 2>/dev/null || true
+          DB_NAME="${DATABASE_URL##*/}"
+          BACKUP_DIR="${{ steps.target.outputs.REMOTE_DIR }}/backups"
+          mkdir -p "$BACKUP_DIR"
+          pg_dump -Fc "$DATABASE_URL" -f "$BACKUP_DIR/${DB_NAME}_$(date +%Y%m%d_%H%M%S).dump" 2>/dev/null || \
+            echo "数据库备份跳过（pg_dump 不可用）"
+
+      - name: Deploy binary
+        run: |
+          REMOTE_DIR="${{ steps.target.outputs.REMOTE_DIR }}"
+          cp ./target/release/rust-backend "$REMOTE_DIR/rust-backend"
+          chmod +x "$REMOTE_DIR/rust-backend"
+          echo "二进制部署完成"
+
+      - name: Run database migrations
+        run: |
+          REMOTE_DIR="${{ steps.target.outputs.REMOTE_DIR }}"
+          mkdir -p "$REMOTE_DIR/migrations"
+          cp ./migrations/*.sql "$REMOTE_DIR/migrations/"
+          source /root/rust/rust_backend/.env 2>/dev/null || true
+          for f in ./migrations/*.sql; do
+            NAME=$(basename "$f")
+            echo "检查迁移: $NAME"
+            # 使用迁移标记表，避免重复执行
+            psql "$DATABASE_URL" -c \
+              "CREATE TABLE IF NOT EXISTS _migrations (name TEXT PRIMARY KEY, applied_at TIMESTAMPTZ DEFAULT NOW())" 2>/dev/null
+            COUNT=$(psql "$DATABASE_URL" -t -A -c "SELECT COUNT(*) FROM _migrations WHERE name='$NAME'" 2>/dev/null || echo "0")
+            if [ "$COUNT" = "0" ]; then
+              echo "执行迁移: $NAME"
+              psql "$DATABASE_URL" -f "$f" && \
+              psql "$DATABASE_URL" -c "INSERT INTO _migrations (name) VALUES ('$NAME')" && \
+              echo "完成: $NAME"
+            else
+              echo "跳过（已执行）: $NAME"
+            fi
+          done
+
+      - name: Restart service
+        run: |
+          SERVICE="${{ steps.target.outputs.SERVICE }}"
+          systemctl restart "$SERVICE"
+          sleep 2
+          systemctl is-active "$SERVICE" && echo "$SERVICE 重启成功" || echo "⚠️ $SERVICE 重启失败"
+
+      - name: Health check
+        run: |
+          for i in $(seq 1 5); do
+            curl -sf http://127.0.0.1:8080/health && echo "健康检查通过" && exit 0
+            sleep 2
+          done
+          echo "健康检查超时" && exit 1