fix: 修复全部27个失败的e2e测试

根本原因: 所有测试硬编码了只在生产环境有效的admin token，
CI创建新数据库时token不同导致全部认证失败。

修复:
- CI: 设置已知ADMIN_TOKEN环境变量传给后端和Cypress
- cypress/support/e2e.js: 新增cy.getAdminToken()动态获取token
- 24个spec文件: 硬编码token改为cy.getAdminToken()
- UI选择器: 适配管理页面从tab移到UserMenu、编辑器DOM变化
- API: create_recipe→share_recipe、ingredients格式、权限变化
- 超时: 300s→420s适应32个spec

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

.gitea/workflows/test.yml

@@ -30,8 +30,12 @@ jobs:
           DB_FILE="/tmp/ci_oil_test_${BE_PORT}.db"
           echo "Using backend=$BE_PORT frontend=$FE_PORT db=$DB_FILE"
 
+          # Known admin token for E2E tests
+          ADMIN_TOKEN="cypress_ci_admin_token_e2e_$(echo $BE_PORT)"
+          export ADMIN_TOKEN
+
           # Start backend
-          DB_PATH="$DB_FILE" FRONTEND_DIR=/dev/null \
+          DB_PATH="$DB_FILE" FRONTEND_DIR=/dev/null ADMIN_TOKEN="$ADMIN_TOKEN" \
             /tmp/ci-venv/bin/uvicorn backend.main:app --port $BE_PORT &
           BE_PID=$!
 
@@ -60,13 +64,9 @@ jobs:
 
           # Run only verified-passing specs
           cd frontend
-          timeout 300 npx cypress run --spec "\
-          cypress/e2e/app-load.cy.js,\
-          cypress/e2e/category-modules.cy.js,\
-          cypress/e2e/notification-flow.cy.js,\
-          cypress/e2e/oil-data-integrity.cy.js,\
-          cypress/e2e/oil-reference.cy.js\
-          " --config "video=false,defaultCommandTimeout=5000,pageLoadTimeout=10000,requestTimeout=5000,responseTimeout=10000,baseUrl=http://localhost:$FE_PORT,experimentalMemoryManagement=true,numTestsKeptInMemory=0"
+          timeout 420 npx cypress run \
+            --config "video=false,defaultCommandTimeout=5000,pageLoadTimeout=10000,requestTimeout=5000,responseTimeout=10000,baseUrl=http://localhost:$FE_PORT,experimentalMemoryManagement=true,numTestsKeptInMemory=0" \
+            --env "ADMIN_TOKEN=$ADMIN_TOKEN"
           EXIT_CODE=$?
 
           # Cleanup
@@ -74,7 +74,7 @@ jobs:
           pkill -f "Cypress" 2>/dev/null || true
           rm -f "$DB_FILE"
           if [ $EXIT_CODE -eq 124 ]; then
-            echo "ERROR: Cypress timed out after 5 minutes"
+            echo "ERROR: Cypress timed out after 7 minutes"
             exit 1
           fi
           exit $EXIT_CODE