fix: CI动态端口+超时控制，避免e2e卡死

- 后端端口随机9000-9999，前端4000-4999
- 数据库文件按端口号隔离
- vite proxy支持VITE_API_PORT环境变量
- 服务启动超时30秒，失败即退出
- Cypress: defaultCommandTimeout=5s, pageLoadTimeout=10s
- 整个e2e job timeout 5分钟

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitea/workflows/test.yml

@@ -12,6 +12,7 @@ jobs:
   e2e-test:
     runs-on: test
     needs: unit-test
+    timeout-minutes: 5
     steps:
       - uses: actions/checkout@v4
 
@@ -23,24 +24,41 @@ jobs:
 
       - name: E2E tests
         run: |
+          # Dynamic ports to avoid conflicts
+          BE_PORT=$(shuf -i 9000-9999 -n 1)
+          FE_PORT=$(shuf -i 4000-4999 -n 1)
+          DB_FILE="/tmp/ci_oil_test_${BE_PORT}.db"
+          echo "Using backend=$BE_PORT frontend=$FE_PORT db=$DB_FILE"
+
           # Start backend
-          DB_PATH=/tmp/ci_oil_test.db FRONTEND_DIR=/dev/null \
-            /tmp/ci-venv/bin/uvicorn backend.main:app --port 8000 &
+          DB_PATH="$DB_FILE" FRONTEND_DIR=/dev/null \
+            /tmp/ci-venv/bin/uvicorn backend.main:app --port $BE_PORT &
+          BE_PID=$!
 
-          # Start frontend (in subshell to not change cwd)
-          (cd frontend && npx vite --port 5173) &
+          # Start frontend with proxy to dynamic backend port
+          (cd frontend && VITE_API_PORT=$BE_PORT npx vite --port $FE_PORT) &
+          FE_PID=$!
 
-          # Wait for both servers
+          # Wait for both servers (max 30s, fail fast)
+          READY=0
           for i in $(seq 1 30); do
-            if curl -sf http://localhost:8000/api/version > /dev/null 2>&1 && \
-               curl -sf http://localhost:5173/ > /dev/null 2>&1; then
-              echo "Both servers ready"
+            if curl -sf http://localhost:$BE_PORT/api/oils > /dev/null 2>&1 && \
+               curl -sf http://localhost:$FE_PORT/ > /dev/null 2>&1; then
+              echo "Both servers ready in ${i}s"
+              READY=1
               break
             fi
             sleep 1
           done
 
-          # Run core cypress specs (proven stable)
+          if [ "$READY" = "0" ]; then
+            echo "ERROR: Servers failed to start within 30s"
+            kill $BE_PID $FE_PID 2>/dev/null
+            rm -f "$DB_FILE"
+            exit 1
+          fi
+
+          # Run core cypress specs with timeouts
           cd frontend
           npx cypress run --spec "\
           cypress/e2e/recipe-detail.cy.js,\
@@ -50,13 +68,12 @@ jobs:
           cypress/e2e/category-modules.cy.js,\
           cypress/e2e/notification-flow.cy.js,\
           cypress/e2e/registration-flow.cy.js\
-          " --config video=false
+          " --config "video=false,defaultCommandTimeout=5000,pageLoadTimeout=10000,baseUrl=http://localhost:$FE_PORT"
           EXIT_CODE=$?
 
           # Cleanup
-          pkill -f "uvicorn backend" || true
-          pkill -f "node.*vite" || true
-          rm -f /tmp/ci_oil_test.db
+          kill $BE_PID $FE_PID 2>/dev/null
+          rm -f "$DB_FILE"
           exit $EXIT_CODE
 
   build-check: