ci: parallelize independent validation jobs

.gitea/workflows/ci.yml

@@ -7,9 +7,11 @@ on:
     branches: [ main ]
   workflow_dispatch:
 
-# Phase 3: Validator pipeline
-# Main branch push validation moved to merge-to-main.yml
-# This workflow runs validators only on PRs for feedback
+# Validator pipeline. Independent validation jobs run in parallel.
+
+concurrency:
+  group: quantengine-ci-${{ github.ref }}
+  cancel-in-progress: true
 
 jobs:
   validate-core:
@@ -65,7 +67,7 @@ jobs:
           fi
         else
           echo "=== npm install (최초 or lock 변경) ==="
-          npm install --quiet
+          npm ci --quiet
           # 캐시 저장
           mkdir -p "$CACHE_DIR"
           cp -r node_modules "$CACHE_DIR/node_modules"
@@ -198,8 +200,6 @@ jobs:
 
   validate-ui-and-storage:
     runs-on: ubuntu-latest
-    needs: validate-core
-    if: needs.validate-core.result == 'success'
 
     steps:
     - name: Checkout Code
@@ -220,23 +220,17 @@ jobs:
         /usr/bin/python3 -c 'import requests, yaml, openpyxl; print("Python dependencies: PASS")'
 
     - name: Validate Snapshot Admin Web UI
-      if: needs.validate-core.result == 'success'
       run: python3 tools/validate_snapshot_admin_web_v1.py
 
     - name: Validate Storage Backend Contracts
-      if: needs.validate-core.result == 'success'
       run: python3 -m pytest tests/unit/test_storage_backend_v1.py tests/unit/test_validate_kis_api_credentials_v1.py tests/unit/test_qualitative_sell_strategy_store_v1.py tests/unit/test_kis_api_client_v1.py tests/unit/test_snapshot_admin_store_v1.py tests/unit/test_snapshot_admin_web_v1.py -q
 
     - name: Notify PR Result
       if: always() && github.event_name == 'pull_request'
       env:
-        CORE_RESULT: ${{ needs.validate-core.result }}
         STAGE_RESULT: ${{ job.status }}
       run: |
         STATUS="$STAGE_RESULT"
-        if [ "$CORE_RESULT" != "success" ]; then
-          STATUS="failure"
-        fi
         PR_NUM="${{ github.event.pull_request.number }}"
         RUN_URL="${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
         if [ "$STATUS" = "success" ]; then