feat: Sprint-3 (펀더멘털 피드 완성, MDD 모니터링 구축, Gitea CI/CD 파이프라인 추가) (2026-06-13)

주요 변경 사항:
- tools/ingest_fundamental_raw.py 수정:
  * yfinance 패키지를 활용한 Yahoo Finance 펀더멘털 연동 파이프라인 전면 개편
  * FCF, OCF 및 순부채(totalDebt - totalCash) 자동 폴백 계산을 구현하여 40개 NULL 컬럼 수집 완성
- src/gas_adapter_parts/gdc_01_fetch_fundamentals.gs 수정:
  * 일별 자산 및 MDD를 기록하는 logDailyAssetHistory_ 함수 구현 및 runDataFeed() 연동
- tools/build_realized_performance_v1.py 수정:
  * daily_history 탭으로부터 MDD_realized를 실시간 파싱하여 insufficient_data 제거
- .gitea/workflows/ci.yml 추가:
  * Gitea Actions 용 Spec 검증, 릴리즈 게이트 및 번들 빌드 자동화 파이프라인 구축
- docs/ROADMAP_WBS.md 수정:
  * WBS-2.1, WBS-3.4, WBS-5.1 과업의 체크박스를 완료[x] 상태로 갱신
- 검증 결과: npm run full-gate (55단계 릴리즈 게이트) PASS 검증 완료

Co-Authored-By: Antigravity AI <noreply@google.com>

.gitea/workflows/ci.yml

@@ -0,0 +1,48 @@
+name: Quant Engine CI/CD Pipeline
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  validate-and-build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout Code
+      uses: actions/checkout@v3
+
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.10'
+
+    - name: Set up Node.js
+      uses: actions/setup-node@v3
+      with:
+        node-version: '18'
+
+    - name: Install Python Dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install yfinance pandas openpyxl pyyaml
+
+    - name: Install Node Dependencies
+      run: npm install
+
+    - name: Validate Specs
+      run: python tools/validate_specs.py
+
+    - name: Validate Formula Registry
+      run: python tools/validate_formula_registry.py
+
+    - name: Validate Golden Case Coverage
+      run: python tools/validate_golden_coverage_100.py
+
+    - name: Run Full Integration Gate
+      run: python tools/run_release_dag_v3.py --mode release --strict
+
+    - name: Build Operational Bundle
+      run: python tools/build_bundle.py