fix(ci-gates): CI FAIL 2건 수정 — WBS-8.7/P3

[P0-A] validate_specs.py FAIL 2건 수정:
- spec/41_release_dag.yaml meta.code_path: 'tools/ or spec/ or .gitea/workflows'
  (상징적 문자열) → 'tools/run_release_dag_v3.py' (실제 파일 경로) 수정
  (WBS-7.11 spec-코드 동기화 게이트 규칙 위반 해소)
- RetirementAssetPortfolio.yaml spec_files에 spec/llm_radar_trust_tiers_v1.yaml 등록
  (WBS-9.6 LLM 레이더 신뢰도 분류 spec manifest 등록)

[P0-B] validate_platform_transition_wbs_v1.py P3 FAIL 수정:
- .gitea/workflows/kis_data_collection.yml collect-kis-data-live job에서
  중복된 mock 자격증명 검증 스텝 제거 (validate-kis-config-smoke job에만 유지)
  (P3 mock_env_vars_not_isolated 규칙: KIS_APP_Key_TEST 정확히 1회 등장 요구)

검증:
- python tools/validate_specs.py → VALIDATION OK
- python tools/validate_platform_transition_wbs_v1.py → gate: PASS

.gitea/workflows/kis_data_collection.yml

@@ -156,25 +156,6 @@ jobs:
     - name: "[CRITICAL] No Direct API Trading Gate"
       run: python3 tools/validate_no_direct_api_trading_v1.py
 
-    - name: "[CRITICAL] Validate KIS API Credentials (mock)"
-      env:
-        # Gitea repository variables are injected here; the Python loader reads these env names.
-        KIS_APP_Key_TEST: ${{ vars.KIS_APP_KEY_TEST }}
-        KIS_APP_Secret_TEST: ${{ vars.KIS_APP_SECRET_TEST }}
-      run: |
-        if [ -z "${KIS_APP_Key_TEST:-}" ]; then
-          echo "::error::Gitea variable KIS_APP_KEY_TEST is missing or empty"
-          exit 1
-        fi
-        if [ -z "${KIS_APP_Secret_TEST:-}" ]; then
-          echo "::error::Gitea variable KIS_APP_SECRET_TEST is missing or empty"
-          exit 1
-        fi
-        python3 tools/validate_kis_api_credentials_v1.py \
-          --account mock \
-          --ticker 005930 \
-          --dry-run
-
     - name: Collect KIS Market Data to SQLite (read-only)
       env:
         # Real collection uses repository variables, not Windows shell env syntax.