Merge pull request '[FEAT] .NET 10 기반 Quant Engine 공식 포팅 및 Blazor UI 리뉴얼 완료' (#6) from feature/dotnet-migration into main

Reviewed-on: http://178.104.200.7/kjh2064/QuantEngineByItz/pulls/6

.gitea/workflows/auto_backup_schedule.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
   daily-backup:
-    runs-on: act-runner
+    runs-on: ubuntu-latest
     name: Daily Backup
 
     steps:
@@ -41,7 +41,7 @@ jobs:
           ls -lh backups/ | tail -5
 
   weekly-full-backup:
-    runs-on: act-runner
+    runs-on: ubuntu-latest
     name: Weekly Full Backup
 
     # 매주 월요일 1:00 UTC
@@ -85,7 +85,7 @@ jobs:
           df -h | grep -E "Filesystem|data"
 
   backup-health-check:
-    runs-on: act-runner
+    runs-on: ubuntu-latest
     name: Backup Health Check
 
     # 매일 12:00 UTC
@@ -127,7 +127,7 @@ jobs:
           du -sh backups/ | awk '{print "Total size: " $1}'
 
   test-recovery:
-    runs-on: act-runner
+    runs-on: ubuntu-latest
     name: Monthly Recovery Test
 
     # 매월 1일 2:00 UTC

.gitea/workflows/backup.yml

@@ -7,7 +7,7 @@ on:
 
 jobs:
   backup:
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - name: Run backup

.gitea/workflows/calibration_backlog.yml

@@ -7,7 +7,7 @@ on:
 
 jobs:
   build-calibration-backlog:
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
 
     steps:
     - name: Checkout Code

.gitea/workflows/ci.yml

@@ -20,7 +20,7 @@ on:
 
 jobs:
   validate-core:
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
 
     steps:
     - name: Checkout Code
@@ -153,8 +153,11 @@ jobs:
     - name: Validate Snapshot Admin Workflow
       run: python3 tools/validate_snapshot_admin_workflow_v1.py
 
+    - name: Validate DB First Pipeline
+      run: python3 tools/validate_db_first_pipeline_v1.py
+
   validate-ui-and-storage:
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
     needs: validate-core
     if: github.event_name != 'push'
 

.gitea/workflows/kis_data_collection.yml

@@ -31,7 +31,7 @@ on:
 jobs:
   validate-kis-config-smoke:
     if: github.event_name == 'workflow_dispatch'
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
     steps:
     - name: Checkout Code
       run: |
@@ -90,7 +90,7 @@ jobs:
 
   collect-kis-data-live:
     if: github.event_name == 'schedule'
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
 
     steps:
     - name: Checkout Code

.gitea/workflows/qualitative_sell_strategy.yml

@@ -7,7 +7,7 @@ on:
 
 jobs:
   evaluate-qualitative-sell:
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
 
     steps:
     - name: Checkout Code

.gitea/workflows/snapshot_admin.yml

@@ -17,7 +17,7 @@ jobs:
   # Push-only smoke gate: no deployment, no web UI smoke, no long-running side effects.
   validate-snapshot-admin-smoke:
     if: github.event_name == 'push'
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout Code
         run: |
@@ -50,10 +50,15 @@ jobs:
           echo "[smoke] validate workflow only (no web UI, no deploy)"
           python3 tools/validate_snapshot_admin_workflow_v1.py
 
+      - name: Validate DB First Pipeline
+        run: |
+          echo "[smoke] validate DB-first pipeline contract"
+          python3 tools/validate_db_first_pipeline_v1.py
+
   # Manual dispatch gate: full workflow + web UI validation only.
   validate-snapshot-admin-full:
     if: github.event_name == 'workflow_dispatch'
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout Code
         run: |
@@ -86,6 +91,11 @@ jobs:
           echo "[full] validate workflow"
           python3 tools/validate_snapshot_admin_workflow_v1.py
 
+      - name: Validate DB First Pipeline
+        run: |
+          echo "[full] validate DB-first pipeline contract"
+          python3 tools/validate_db_first_pipeline_v1.py
+
       - name: Validate Snapshot Admin Web UI
         run: |
           echo "[full] validate web ui"

.gitea/workflows/snapshot_admin_deploy.yml

@@ -1,6 +1,9 @@
 name: Snapshot Admin Deployment
 
 on:
+  push:
+    branches:
+      - main
   workflow_dispatch:
 
 concurrency:
@@ -8,85 +11,43 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  deploy-snapshot-admin:
+  build-and-deploy:
-    runs-on: [self-hosted, snapshot-admin-host]
+    runs-on: ubuntu-latest
-    timeout-minutes: 20
+    timeout-minutes: 15
     steps:
       - name: Checkout Code
-        run: |
+        uses: actions/checkout@v3
-          echo "[deploy] checkout main for snapshot admin runtime"
-          if [ -d .git ]; then
-            git remote set-url origin http://x-access-token:${{ secrets.GITHUB_TOKEN }}@192.168.123.100:8418/KimJaeHyun/myfinance.git
-          else
-            git init
-            git remote add origin http://x-access-token:${{ secrets.GITHUB_TOKEN }}@192.168.123.100:8418/KimJaeHyun/myfinance.git
-          fi
-          git fetch origin main --depth=1
-          git reset --hard FETCH_HEAD
 
-      - name: Setup Python Environment
+      - name: Setup .NET SDK
-        run: |
+        uses: actions/setup-dotnet@v3
-          echo "[deploy] prepare python venv for snapshot admin launcher"
+        with:
-          VENV_BASE=/volume1/gitea/python_venv
+          dotnet-version: '10.0.x'
-          REQ_HASH=$(md5sum tools/validate_snapshot_admin_workflow_v1.py 2>/dev/null | cut -d' ' -f1 || echo "snapshot-admin-default")
-          VENV="$VENV_BASE/$REQ_HASH"
-          if [ ! -f "$VENV/bin/python" ]; then
-            mkdir -p "$VENV_BASE"
-            /usr/bin/python3 -m venv "$VENV"
-            "$VENV/bin/pip" install --upgrade pip --quiet
-          fi
-          "$VENV/bin/pip" install pyyaml --quiet
-          echo "$VENV/bin" >> $GITHUB_PATH
 
-      - name: Deploy Snapshot Admin Runtime
+      - name: Publish Blazor Web App
+        run: |
+          echo "[deploy] publishing .NET 10 Blazor app"
+          dotnet publish src/dotnet/QuantEngine.Web/QuantEngine.Web.csproj -c Release -o ./publish
+
+      - name: Compress Artifact
+        run: |
+          echo "[deploy] compressing publish output"
+          tar -czf quantengine.tar.gz -C ./publish .
+
+      - name: Deploy to Host via Local SSH
         env:
-          SNAPSHOT_ADMIN_AUTH_USER: ${{ vars.SNAPSHOT_ADMIN_AUTH_USER }}
+          SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
-          SNAPSHOT_ADMIN_AUTH_PASSWORD: ${{ secrets.SNAPSHOT_ADMIN_AUTH_PASSWORD }}
         run: |
-          echo "[deploy] restart loopback service on 127.0.0.1:8787"
+          echo "[deploy] setting up SSH and deploying shadow copy"
-          export ROOT_DIR="$PWD"
+          mkdir -p ~/.ssh
-          export SNAPSHOT_ADMIN_HOST=127.0.0.1
+          echo "$SSH_PRIVATE_KEY" > ~/.ssh/id_rsa
-          export SNAPSHOT_ADMIN_PORT=8787
+          chmod 600 ~/.ssh/id_rsa
-          export SNAPSHOT_ADMIN_PID_FILE="$PWD/Temp/snapshot_admin.pid"
+          ssh-keyscan -H host.docker.internal >> ~/.ssh/known_hosts
-          export SNAPSHOT_ADMIN_LOG_FILE="$PWD/Temp/snapshot_admin.log"
-          export SNAPSHOT_ADMIN_STATE_URL="http://127.0.0.1:8787/api/state"
-          export SNAPSHOT_ADMIN_PUBLIC_STATE_URL="https://admin.example.com/api/state"
-          export SNAPSHOT_ADMIN_AUTH_USER="${SNAPSHOT_ADMIN_AUTH_USER:-}"
-          export SNAPSHOT_ADMIN_AUTH_PASSWORD="${SNAPSHOT_ADMIN_AUTH_PASSWORD:-}"
-          bash tools/run_snapshot_admin_synology.sh restart
 
-      - name: Verify Snapshot Admin Runtime
+          # Upload artifact and deploy script to host
-        env:
+          ssh kjh2064@host.docker.internal "mkdir -p /home/kjh2064/tmp"
-          SNAPSHOT_ADMIN_AUTH_USER: ${{ vars.SNAPSHOT_ADMIN_AUTH_USER }}
+          scp quantengine.tar.gz kjh2064@host.docker.internal:/home/kjh2064/tmp/quantengine.tar.gz
-          SNAPSHOT_ADMIN_AUTH_PASSWORD: ${{ secrets.SNAPSHOT_ADMIN_AUTH_PASSWORD }}
+          
-        run: |
+          # Execute hot deploy script
-          echo "[deploy] verify local health and auth gate"
+          ssh kjh2064@host.docker.internal "chmod +x /home/kjh2064/tmp/deploy.sh 2>/dev/null || true"
-          export ROOT_DIR="$PWD"
+          scp tools/deploy_quantengine.sh kjh2064@host.docker.internal:/home/kjh2064/tmp/deploy.sh
-          export SNAPSHOT_ADMIN_HOST=127.0.0.1
+          ssh kjh2064@host.docker.internal "chmod +x /home/kjh2064/tmp/deploy.sh && /home/kjh2064/tmp/deploy.sh"
-          export SNAPSHOT_ADMIN_PORT=8787
-          export SNAPSHOT_ADMIN_PID_FILE="$PWD/Temp/snapshot_admin.pid"
-          export SNAPSHOT_ADMIN_LOG_FILE="$PWD/Temp/snapshot_admin.log"
-          export SNAPSHOT_ADMIN_STATE_URL="http://127.0.0.1:8787/api/state"
-          export SNAPSHOT_ADMIN_AUTH_USER="${SNAPSHOT_ADMIN_AUTH_USER:-}"
-          export SNAPSHOT_ADMIN_AUTH_PASSWORD="${SNAPSHOT_ADMIN_AUTH_PASSWORD:-}"
-          echo "[deploy] wait for service readiness"
-          ready=0
-          for attempt in $(seq 1 30); do
-            if bash tools/run_snapshot_admin_synology.sh healthcheck; then
-              ready=1
-              break
-            fi
-            echo "[deploy] healthcheck retry $attempt/30"
-            sleep 2
-          done
-          if [ "$ready" -ne 1 ]; then
-            echo "[deploy] snapshot admin did not become ready in time"
-            tail -n 60 "$SNAPSHOT_ADMIN_LOG_FILE" || true
-            exit 1
-          fi
-          if [ -n "$SNAPSHOT_ADMIN_AUTH_USER" ] && [ -n "$SNAPSHOT_ADMIN_AUTH_PASSWORD" ]; then
-            curl -fsS -u "${SNAPSHOT_ADMIN_AUTH_USER}:${SNAPSHOT_ADMIN_AUTH_PASSWORD}" http://127.0.0.1:8787/api/state | python3 -c "import json,sys; print(json.load(sys.stdin)['version']['app'])"
-          else
-            curl -fsS http://127.0.0.1:8787/api/state | python3 -c "import json,sys; print(json.load(sys.stdin)['version']['app'])"
-          fi
-          echo "[deploy] snapshot admin deploy verification complete"

.gitea/workflows/wbs_9_3_null_policy_ci_gate.yml

@@ -14,7 +14,7 @@ on:
 
 jobs:
   null-policy-validation:
-    runs-on: act-runner
+    runs-on: ubuntu-latest
     name: NULL Policy Validation
 
     steps:

AGENTS.md

@@ -16,6 +16,22 @@
 - 위 4가지 중 하나라도 빠지면 작업은 미완료다. 요약이나 설명만으로 완료 처리하지 않는다.
 - 완료 보고에는 반드시 변경된 YAML, 코드, 데이터 파일 경로와 검증 명령을 함께 적는다.
 
+## 0c. 작업 수행 절차 강제
+- 모든 작업은 아래 순서를 반드시 따른다.
+  1. `로드맵/현황 확인`
+  2. `WBS 작성`
+  3. `목표 설정`
+  4. `성공판단 데이터 정의`
+  5. `구현`
+  6. `사후 검증`
+  7. `증빙 기록`
+- 작업 시작 전에는 반드시 해당 작업의 WBS 항목과 성공판단 데이터를 문장 또는 표로 먼저 확정한다.
+- 성공판단 데이터가 없으면 구현을 시작하지 않는다.
+- “한 줄 추가”, “작아 보이는 수정”도 예외가 아니다. 모든 변경은 WBS와 성공판단 데이터에 매핑되어야 한다.
+- 작업 도중 범위가 바뀌면 WBS를 먼저 갱신하고 난 뒤에만 구현을 계속한다.
+- 작업 완료 판정은 구현 완료가 아니라 검증 통과와 증빙 기록까지 확인된 경우에만 가능하다.
+- 사후 검증 없이 “대충 괜찮다” 식의 진행은 금지한다.
+
 ## 1. 읽는 순서
 1. `runtime/active_artifact_manifest.yaml`
 2. `Temp/final_decision_packet_active.json` (manifest alias)
@@ -101,11 +117,14 @@
 
 ## 5. 개발 규칙
 - 새 기능은 contract, schema, golden case, owner ledger를 먼저 만든다.
+- 그 다음에 WBS와 성공판단 데이터(테스트/검증 입력과 기대값)를 먼저 만든다.
 - 구현은 Python canonical first, GAS adapter second다.
 - `tools/*.py`는 CLI wrapper에 가깝게 유지한다.
 - `gas_*.gs`는 thin adapter 방향으로 유지한다.
 - `src/quant_engine`는 canonical package로 유지한다.
 - `schemas/generated`와 `src/quant_engine/models/generated`는 schema/model parity를 유지한다.
+- 코드 변경은 WBS 항목 번호와 성공판단 데이터 파일/명령을 함께 남겨야 한다.
+- 검증 결과가 없으면 완료 보고를 하지 않는다.
 - 경로가 새로 생기면 `AGENTS.md`의 Directory Routing / Serving 섹션과 zip 화이트리스트를 함께 갱신한다.
 - **Python 인터프리터**: Windows 로컬 환경에서는 반드시 `python`을 사용한다 (`python3` 금지).
   - `python` → Python 3.13.5 (`Python313/`) — yaml/openpyxl/yfinance 등 프로젝트 패키지 설치됨

docs/GITEA_SECRETS_SETUP.md

@@ -19,6 +19,14 @@
 - `KIS_APP_KEY`
 - `KIS_APP_SECRET`
 
+## Token Cache Policy
+
+- KIS access token은 `Temp/kis_tokens.db`에 저장한다.
+- 토큰은 `TOKEN_REFRESH_SKEW_MINUTES=10` 기준으로만 재사용/갱신한다.
+- 토큰 캐시는 수집 DB와 분리한다.
+- 토큰 캐시 상태는 `python tools/inspect_kis_token_cache_v1.py --json`로 점검한다.
+- 토큰 갱신 실패 시 appkey/appsecret 또는 API 가용성 문제로만 판단하고, 시크릿 값을 로그나 알림에 그대로 노출하지 않는다.
+
 ## Workflow Mapping
 
 - `.gitea/workflows/kis_data_collection.yml`
@@ -35,6 +43,7 @@
 - mock 계정은 유효성 확인용이다.
 - real 계정은 실제 데이터 수집용이다.
 - 둘을 같은 단계에서 혼용하지 않는다.
+- 토큰 발급은 1일 1회 원칙을 따르며, 만료 전에는 캐시를 재사용한다.
 
 ## Verification
 

docs/ROADMAP_WBS.md

@@ -5,6 +5,20 @@
 
 ---
 
+## 0a. 현재 실행 우선순위
+
+> 2026-06-24 기준, v8.9 채택안(P0~P3)은 검증 완료 상태이며 새 구현 백로그의 최우선 순위는 아래 순서로 고정한다.
+
+1. `WBS-7.1` 캘리브레이션 임계값 실증 전환
+2. `WBS-7.7` 신규 시스템 E2E 통합 테스트 및 snapshot_admin 스모크 테스트
+3. `WBS-7.8` ETF NAV/괴리율/추적오차/AUM 수집 경로 확정
+4. `WBS-7.5` 임시 하드코딩 폴백 비례화의 실증 보정
+5. `WBS-7.6` 슬리피지 실측 보정
+
+`WBS-7.2`, `WBS-7.3`, `WBS-7.4`, `WBS-7.10`~`WBS-7.14`는 현재 문서상 완료 또는 정리 완료로 유지한다.
+
+---
+
 ## 0b. 완료 조건
 
 모든 작업은 아래 4가지 증빙이 함께 있을 때만 완료로 본다.
@@ -16,6 +30,22 @@
 
 하나라도 빠지면 완료로 보지 않는다.
 
+## 0c. 작업 절차 강제
+
+모든 변경은 아래 순서를 지켜야 한다.
+
+1. 로드맵/현황 확인
+2. WBS 작성
+3. 목표 설정
+4. 성공판단 데이터 정의
+5. 구현
+6. 사후 검증
+7. 증빙 기록
+
+작업 시작 전에 WBS와 성공판단 데이터를 먼저 확정해야 하며, 작은 수정도 예외가 아니다.
+작업 도중 범위가 바뀌면 먼저 WBS를 갱신한 뒤 구현을 계속한다.
+검증 증빙이 없으면 완료로 볼 수 없다.
+
 ---
 
 ## 0c. 비판적 리뷰 (2026-06-21)

prompts/analysis_prompt.md

@@ -58,6 +58,19 @@ Use this prompt when producing an investment analysis or HTS-ready playbook.
 | GOAL_RETIREMENT_V1 | goal_current_asset_krw, goal_achievement_pct | {N}% 달성 / 잔여 {M}만원 / ETA {YYYY-MM} | IN_PROGRESS / ACHIEVED |
 
 **상황별 선택 추가 공식 (해당 시 반드시 포함):**
+
+---
+
+## WORKFLOW DISCIPLINE
+
+작업 또는 수정 제안 전에 반드시 아래 4가지를 먼저 확정한다.
+
+1. WBS 항목
+2. 목표
+3. 성공판단 데이터
+4. 검증 명령
+
+이 4가지가 명시되지 않으면 구현, 수정, 렌더링을 시작하지 않는다.
 - 매수 검토 시: `MEAN_REVERSION_GATE_V1` (이격도 체크 선행), `POSITION_SIZE_V1`, `RISK_BUDGET_CASCADE_V1`, `EXPECTED_EDGE_V1`
 - 매도 후보 시: `RS_RATIO_V1` (rs_laggard 판정), `SELL_PRIORITY_V1`
 - 가격 산출 시: `STOP_PRICE_CORE_V1`, `TAKE_PROFIT_LADDER_V2`, `TICK_NORMALIZER_V1`

prompts/capture_parse_prompt.md

@@ -15,6 +15,19 @@ HTS 캡처 이미지가 제공되면 이 프롬프트를 **분석보다 먼저**
 
 ---
 
+## WORKFLOW DISCIPLINE
+
+캡처 파싱 전에 반드시 아래 4가지를 먼저 확정한다.
+
+1. WBS 항목
+2. 목표
+3. 성공판단 데이터
+4. 검증 명령
+
+이 4가지가 없으면 파싱을 시작하지 않는다.
+
+---
+
 ## STEP 1 — 화면 종류 판별
 
 | 화면 | 판별 기준 | 사용 가능 여부 |

prompts/review_prompt.md

@@ -43,3 +43,16 @@ Do not approve:
 - PASS order without `execution_quality_table`
 - WATCH ledger using HTS order columns such as `지정가`, `손절가`, `익절가`, `주문수량`, or `주문금액`
 - prose headers such as `이번 주 결론`, `현재 포트폴리오 핵심 진단`, `보유 종목별 운용 지침`, `종합 의견` replacing required tables
+
+---
+
+## WORKFLOW DISCIPLINE
+
+리뷰 전에 반드시 아래 4가지를 요구한다.
+
+1. WBS 항목
+2. 목표
+3. 성공판단 데이터
+4. 검증 명령
+
+이 4가지가 없으면 리뷰 대상은 완료가 아니라 미완료로 판단한다.

spec/02_data_contract.yaml

@@ -160,10 +160,10 @@ quant_feed_contract:
       - "data_integrity_score=100이어도 pending_critical_category_count>0이면 PASS_100 문구를 쓰지 않는다."
 
   json_analysis_protocol:
-    purpose: "GatherTradingData.json에서 시장 raw 분석 데이터를 빠르게 파싱해 data_completeness_matrix와 판단 입력으로 사용."
+    purpose: "GatherTradingData.json은 DB 기반 수집 결과를 바탕으로 생성된 파생 보고서 증빙이다. 최종 보고서 렌더링과 data_completeness_matrix 참고용으로만 사용한다."
     python_parsing_baseline:
       shell_rule: "PowerShell에서는 Bash heredoc 금지. '@ ... @ | python -' 형식으로 실행."
-      json_load_rule: "json.loads(Path('GatherTradingData.json').read_text(encoding='utf-8'))를 기본값으로 사용."
+      json_load_rule: "json.loads(Path('GatherTradingData.json').read_text(encoding='utf-8'))를 기본값으로 사용하되, 원천 추적은 SQLite DB의 history와 snapshot tables를 우선 확인한다."
       required_top_level: ["metadata", "data"]
       required_schema_version: "2026-05-18-json-raw-data-v1"
       required_paths: ["data.data_feed", "data.sector_flow", "data.macro", "data.event_risk", "data.core_satellite"]
@@ -171,9 +171,9 @@ quant_feed_contract:
         text_columns: ["Ticker", "ETF_Code", "Proxy_Ticker", "Base_Ticker", "Constituent_Code", "ETF_Ticker", "Symbol", "ticker"]
         normalization: "숫자로 읽힌 91160.0, 5930.0 등은 문자열화 후 6자리 zero-pad 적용."
       validation_commands: ["npm run validate-data-sample", "npm run validate-specs"]
-      xlsx_refresh_rule: "xlsx 원본을 갱신했으면 npm run convert-data-json 실행 후 JSON을 다시 검증한다."
+      xlsx_refresh_rule: "xlsx 원본을 갱신했으면 먼저 DB에 반영한 뒤, 엔진이 DB를 읽어 JSON 파생 보고서를 재생성하고 다시 검증한다."
   xlsx_analysis_protocol:
-    purpose: "xlsx는 HTS 잔고·거래내역 판독 또는 raw JSON 재생성 감사를 위한 보조 프로토콜이다. 시장 raw 일반 분석은 json_analysis_protocol을 우선한다."
+    purpose: "xlsx는 HTS 잔고·거래내역 판독 또는 DB 반영 이전의 보조 감사 소스다. 시장 raw 일반 분석과 최종 보고서 생성은 DB 추적 후의 파생 JSON을 우선한다."
     python_parsing_baseline:
       shell_rule: "PowerShell에서는 Bash heredoc 금지. '@ ... @ | python -' 형식으로 실행."
       openpyxl_read_rule: "값 점검은 openpyxl.load_workbook(path, data_only=True, read_only=True)를 기본값으로 사용."

spec/30_completion_criteria_contract.yaml

@@ -15,6 +15,20 @@ meta:
   engine_audit_ref: Temp/engine_audit_v1.json
   pass_100_ref: Temp/pass_100_criteria_v1.json
 
+workflow_disciplines:
+  required_preimplementation_order:
+    - "로드맵/현황 확인"
+    - "WBS 작성"
+    - "목표 설정"
+    - "성공판단 데이터 정의"
+    - "구현"
+    - "사후 검증"
+    - "증빙 기록"
+  completion_gate_rule: "작업 시작 전 WBS와 성공판단 데이터가 명시되지 않으면 진행 금지"
+  small_change_rule: "한 줄 추가, 두 줄 추가 같은 소규모 변경도 동일하게 적용"
+  scope_change_rule: "작업 도중 범위가 바뀌면 먼저 WBS를 갱신한 뒤 계속 진행"
+  evidence_rule: "검증 증빙 없이는 완료로 간주하지 않음"
+
 # ── §7 프롬프트 완료 조건 ────────────────────────────────────────────────────
 criteria:
 

spec/calibration_registry.yaml

@@ -598,6 +598,28 @@ thresholds:
   sunset_date: '2026-09-30'
   unit: rsi
   value: 70.0
+- gs_location: gas_data_feed.gs:8780
+  id: DSD_V1_ANALYST_PEG_BLOCK_PCT
+  last_calibrated: null
+  live_sample_requirement: 30
+  notes: analystScore 보조 임계 — pegScore>=8이면 가점. 실증 전 EXPERT_PRIOR로 유지.
+  owner_formula: DISTRIBUTION_SELL_DETECTOR_V1
+  sample_n: 0
+  source: EXPERT_PRIOR
+  sunset_date: '2026-09-30'
+  unit: score_condition
+  value: 8.0
+- gs_location: gas_data_feed.gs:8780
+  id: DSD_V1_ANALYST_UPSIDE_BLOCK_PCT
+  last_calibrated: null
+  live_sample_requirement: 30
+  notes: analystScore 보조 임계 — upsidePct>15이면 가점. 실증 전 EXPERT_PRIOR로 유지.
+  owner_formula: DISTRIBUTION_SELL_DETECTOR_V1
+  sample_n: 0
+  source: EXPERT_PRIOR
+  sunset_date: '2026-09-30'
+  unit: pct
+  value: 15.0
 - gs_location: gas_data_feed.gs:2098
   id: HEAT_GATE_EVENT_SHOCK_HARD_BLOCK
   last_calibrated: null

src/dotnet/QuantEngine.Application/Class1.cs

@@ -0,0 +1,6 @@
+namespace QuantEngine.Application;
+
+public class Class1
+{
+
+}

src/dotnet/QuantEngine.Application/QuantEngine.Application.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <ItemGroup>
+    <ProjectReference Include="..\QuantEngine.Core\QuantEngine.Core.csproj" />
+  </ItemGroup>
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

src/dotnet/QuantEngine.Application/bin/Debug/net10.0/QuantEngine.Application.deps.json

@@ -0,0 +1,39 @@
+{
+  "runtimeTarget": {
+    "name": ".NETCoreApp,Version=v10.0",
+    "signature": ""
+  },
+  "compilationOptions": {},
+  "targets": {
+    ".NETCoreApp,Version=v10.0": {
+      "QuantEngine.Application/1.0.0": {
+        "dependencies": {
+          "QuantEngine.Core": "1.0.0"
+        },
+        "runtime": {
+          "QuantEngine.Application.dll": {}
+        }
+      },
+      "QuantEngine.Core/1.0.0": {
+        "runtime": {
+          "QuantEngine.Core.dll": {
+            "assemblyVersion": "1.0.0.0",
+            "fileVersion": "1.0.0.0"
+          }
+        }
+      }
+    }
+  },
+  "libraries": {
+    "QuantEngine.Application/1.0.0": {
+      "type": "project",
+      "serviceable": false,
+      "sha512": ""
+    },
+    "QuantEngine.Core/1.0.0": {
+      "type": "project",
+      "serviceable": false,
+      "sha512": ""
+    }
+  }
+}

src/dotnet/QuantEngine.Application/obj/Debug/net10.0/.NETCoreApp,Version=v10.0.AssemblyAttributes.cs

@@ -0,0 +1,4 @@
+// <autogenerated />
+using System;
+using System.Reflection;
+[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETCoreApp,Version=v10.0", FrameworkDisplayName = ".NET 10.0")]

src/dotnet/QuantEngine.Application/obj/Debug/net10.0/QuantEngine.Application.AssemblyInfo.cs

@@ -0,0 +1,22 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+using System;
+using System.Reflection;
+
+[assembly: System.Reflection.AssemblyCompanyAttribute("QuantEngine.Application")]
+[assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
+[assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+9abb8d3bc31eb38d5c27cbd3ca734da4eeec9609")]
+[assembly: System.Reflection.AssemblyProductAttribute("QuantEngine.Application")]
+[assembly: System.Reflection.AssemblyTitleAttribute("QuantEngine.Application")]
+[assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
+
+// MSBuild WriteCodeFragment 클래스에서 생성되었습니다.
+

src/dotnet/QuantEngine.Application/obj/Debug/net10.0/QuantEngine.Application.AssemblyInfoInputs.cache

@@ -0,0 +1 @@
+e3e68b7b4f28bedfa4c281c4ea433640f06d2b156729338bb8a006b285e962b7

src/dotnet/QuantEngine.Application/obj/Debug/net10.0/QuantEngine.Application.GeneratedMSBuildEditorConfig.editorconfig

@@ -0,0 +1,17 @@
+is_global = true
+build_property.TargetFramework = net10.0
+build_property.TargetFrameworkIdentifier = .NETCoreApp
+build_property.TargetFrameworkVersion = v10.0
+build_property.TargetPlatformMinVersion = 
+build_property.UsingMicrosoftNETSdkWeb = 
+build_property.ProjectTypeGuids = 
+build_property.InvariantGlobalization = 
+build_property.PlatformNeutralAssembly = 
+build_property.EnforceExtendedAnalyzerRules = 
+build_property._SupportedPlatformList = Linux,macOS,Windows
+build_property.RootNamespace = QuantEngine.Application
+build_property.ProjectDir = C:\Temp\data_feed\src\dotnet\QuantEngine.Application\
+build_property.EnableComHosting = 
+build_property.EnableGeneratedComInterfaceComImportInterop = 
+build_property.EffectiveAnalysisLevelStyle = 10.0
+build_property.EnableCodeStyleSeverity = 

src/dotnet/QuantEngine.Application/obj/Debug/net10.0/QuantEngine.Application.GlobalUsings.g.cs

@@ -0,0 +1,8 @@
+// <auto-generated/>
+global using System;
+global using System.Collections.Generic;
+global using System.IO;
+global using System.Linq;
+global using System.Net.Http;
+global using System.Threading;
+global using System.Threading.Tasks;

src/dotnet/QuantEngine.Application/obj/Debug/net10.0/QuantEngine.Application.csproj.CoreCompileInputs.cache

@@ -0,0 +1 @@
+80e94a6d094629e4ad80f7142465b92081655e3b97c91dba890ae9505b6eac2c

src/dotnet/QuantEngine.Application/obj/Debug/net10.0/QuantEngine.Application.csproj.FileListAbsolute.txt

@@ -0,0 +1,15 @@
+C:\Temp\data_feed\src\dotnet\QuantEngine.Application\bin\Debug\net10.0\QuantEngine.Application.deps.json
+C:\Temp\data_feed\src\dotnet\QuantEngine.Application\bin\Debug\net10.0\QuantEngine.Application.dll
+C:\Temp\data_feed\src\dotnet\QuantEngine.Application\bin\Debug\net10.0\QuantEngine.Application.pdb
+C:\Temp\data_feed\src\dotnet\QuantEngine.Application\bin\Debug\net10.0\QuantEngine.Core.dll
+C:\Temp\data_feed\src\dotnet\QuantEngine.Application\bin\Debug\net10.0\QuantEngine.Core.pdb
+C:\Temp\data_feed\src\dotnet\QuantEngine.Application\obj\Debug\net10.0\QuantEngine.Application.csproj.AssemblyReference.cache
+C:\Temp\data_feed\src\dotnet\QuantEngine.Application\obj\Debug\net10.0\QuantEngine.Application.GeneratedMSBuildEditorConfig.editorconfig
+C:\Temp\data_feed\src\dotnet\QuantEngine.Application\obj\Debug\net10.0\QuantEngine.Application.AssemblyInfoInputs.cache
+C:\Temp\data_feed\src\dotnet\QuantEngine.Application\obj\Debug\net10.0\QuantEngine.Application.AssemblyInfo.cs
+C:\Temp\data_feed\src\dotnet\QuantEngine.Application\obj\Debug\net10.0\QuantEngine.Application.csproj.CoreCompileInputs.cache
+C:\Temp\data_feed\src\dotnet\QuantEngine.Application\obj\Debug\net10.0\QuantEng.294596D8.Up2Date
+C:\Temp\data_feed\src\dotnet\QuantEngine.Application\obj\Debug\net10.0\QuantEngine.Application.dll
+C:\Temp\data_feed\src\dotnet\QuantEngine.Application\obj\Debug\net10.0\refint\QuantEngine.Application.dll
+C:\Temp\data_feed\src\dotnet\QuantEngine.Application\obj\Debug\net10.0\QuantEngine.Application.pdb
+C:\Temp\data_feed\src\dotnet\QuantEngine.Application\obj\Debug\net10.0\ref\QuantEngine.Application.dll

src/dotnet/QuantEngine.Application/obj/QuantEngine.Application.csproj.nuget.dgspec.json

@@ -0,0 +1,696 @@
+{
+  "format": 1,
+  "restore": {
+    "C:\\Temp\\data_feed\\src\\dotnet\\QuantEngine.Application\\QuantEngine.Application.csproj": {}
+  },
+  "projects": {
+    "C:\\Temp\\data_feed\\src\\dotnet\\QuantEngine.Application\\QuantEngine.Application.csproj": {
+      "version": "1.0.0",
+      "restore": {
+        "projectUniqueName": "C:\\Temp\\data_feed\\src\\dotnet\\QuantEngine.Application\\QuantEngine.Application.csproj",
+        "projectName": "QuantEngine.Application",
+        "projectPath": "C:\\Temp\\data_feed\\src\\dotnet\\QuantEngine.Application\\QuantEngine.Application.csproj",
+        "packagesPath": "C:\\Users\\kjh20\\.nuget\\packages\\",
+        "outputPath": "C:\\Temp\\data_feed\\src\\dotnet\\QuantEngine.Application\\obj\\",
+        "projectStyle": "PackageReference",
+        "fallbackFolders": [
+          "C:\\Program Files (x86)\\Microsoft Visual Studio\\Shared\\NuGetPackages",
+          "C:\\Program Files\\dotnet\\sdk\\NuGetFallbackFolder"
+        ],
+        "configFilePaths": [
+          "C:\\Users\\kjh20\\AppData\\Roaming\\NuGet\\NuGet.Config",
+          "C:\\Program Files (x86)\\NuGet\\Config\\Microsoft.VisualStudio.FallbackLocation.config",
+          "C:\\Program Files (x86)\\NuGet\\Config\\Microsoft.VisualStudio.Offline.config"
+        ],
+        "originalTargetFrameworks": [
+          "net10.0"
+        ],
+        "sources": {
+          "C:\\Program Files (x86)\\Microsoft SDKs\\NuGetPackages\\": {},
+          "C:\\Program Files\\dotnet\\library-packs": {},
+          "https://api.nuget.org/v3/index.json": {},
+          "https://nuget.telerik.com/v3/index.json": {}
+        },
+        "frameworks": {
+          "net10.0": {
+            "targetAlias": "net10.0",
+            "projectReferences": {
+              "C:\\Temp\\data_feed\\src\\dotnet\\QuantEngine.Core\\QuantEngine.Core.csproj": {
+                "projectPath": "C:\\Temp\\data_feed\\src\\dotnet\\QuantEngine.Core\\QuantEngine.Core.csproj"
+              }
+            }
+          }
+        },
+        "warningProperties": {
+          "warnAsError": [
+            "NU1605"
+          ]
+        },
+        "restoreAuditProperties": {
+          "enableAudit": "true",
+          "auditLevel": "low",
+          "auditMode": "all"
+        },
+        "SdkAnalysisLevel": "10.0.100"
+      },
+      "frameworks": {
+        "net10.0": {
+          "targetAlias": "net10.0",
+          "imports": [
+            "net461",
+            "net462",
+            "net47",
+            "net471",
+            "net472",
+            "net48",
+            "net481"
+          ],
+          "assetTargetFallback": true,
+          "warn": true,
+          "frameworkReferences": {
+            "Microsoft.NETCore.App": {
+              "privateAssets": "all"
+            }
+          },
+          "runtimeIdentifierGraphPath": "C:\\Program Files\\dotnet\\sdk\\10.0.100/PortableRuntimeIdentifierGraph.json",
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+          "System.Threading.Overlapped": "(,4.3.32767]",
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+          "System.Threading.Tasks.Dataflow": "(,10.0.32767]",
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+          "System.Threading.Thread": "(,4.3.32767]",
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+          "System.Threading.Timer": "(,4.3.32767]",
+          "System.ValueTuple": "(,4.5.32767]",
+          "System.Xml.ReaderWriter": "(,4.3.32767]",
+          "System.Xml.XDocument": "(,4.3.32767]",
+          "System.Xml.XmlDocument": "(,4.3.32767]",
+          "System.Xml.XmlSerializer": "(,4.3.32767]",
+          "System.Xml.XPath": "(,4.3.32767]",
+          "System.Xml.XPath.XDocument": "(,5.0.32767]"
+        }
+      }
+    }
+  }
+}

src/dotnet/QuantEngine.Application/obj/project.nuget.cache

@@ -0,0 +1,8 @@
+{
+  "version": 2,
+  "dgSpecHash": "8gfOEW9DpEc=",
+  "success": true,
+  "projectFilePath": "C:\\Temp\\data_feed\\src\\dotnet\\QuantEngine.Application\\QuantEngine.Application.csproj",
+  "expectedPackageFiles": [],
+  "logs": []
+}

src/dotnet/QuantEngine.Core/Class1.cs

@@ -0,0 +1,6 @@
+namespace QuantEngine.Core;
+
+public class Class1
+{
+
+}

src/dotnet/QuantEngine.Core/Domain/AntiChasingCalculator.cs

@@ -0,0 +1,43 @@
+using System;
+
+namespace QuantEngine.Core.Domain
+{
+    public class AntiChasingResult
+    {
+        public string AntiChasingVerdict { get; set; } = "CLEAR";
+        public string AntiChasingVelocityStatus { get; set; } = "PASS";
+        public double Velocity1dInput { get; set; }
+    }
+
+    public static class AntiChasingCalculator
+    {
+        public static AntiChasingResult ComputeAntiChasing(double velocity1d)
+        {
+            string verdict;
+            string status;
+
+            if (velocity1d >= 3.0)
+            {
+                verdict = "BLOCK_CHASE";
+                status = "BLOCKED";
+            }
+            else if (velocity1d >= 1.5)
+            {
+                verdict = "PULLBACK_WAIT";
+                status = "WAIT";
+            }
+            else
+            {
+                verdict = "CLEAR";
+                status = "PASS";
+            }
+
+            return new AntiChasingResult
+            {
+                AntiChasingVerdict = verdict,
+                AntiChasingVelocityStatus = status,
+                Velocity1dInput = Math.Round(velocity1d, 4)
+            };
+        }
+    }
+}

src/dotnet/QuantEngine.Core/Domain/ExitDecisions.cs

@@ -0,0 +1,221 @@
+using System;
+using System.Collections.Generic;
+
+namespace QuantEngine.Core.Domain
+{
+    public class StopPriceResult
+    {
+        public double? StopPrice { get; set; }
+        public string StopPriceStatus { get; set; } = "PASS";
+        public double? Atr20Pct { get; set; }
+        public double? AtrMultiplier { get; set; }
+        public List<string> DataMissing { get; set; } = new List<string>();
+    }
+
+    public class StopActionLadderResult
+    {
+        public string Action { get; set; } = "REVIEW_HUMAN";
+        public string Reason { get; set; } = "NO_FORCED_EXIT";
+        public double QuantityPct { get; set; }
+        public double Priority { get; set; } = 7;
+    }
+
+    public class HeatThresholdResult
+    {
+        public double HardBlock { get; set; }
+        public double Halve { get; set; }
+    }
+
+    public static class ExitDecisions
+    {
+        public static StopPriceResult ComputeStopPriceCore(
+            double? entryPrice,
+            double? atr20,
+            double? currentPrice = null,
+            double? atrMultiplier = null)
+        {
+            var result = new StopPriceResult();
+
+            if (!entryPrice.HasValue)
+            {
+                result.StopPrice = null;
+                result.StopPriceStatus = "NO_STOP_PRICE";
+                result.DataMissing.Add("entry_price");
+                return result;
+            }
+
+            if (!atr20.HasValue && !atrMultiplier.HasValue)
+            {
+                result.StopPrice = entryPrice.Value * 0.92;
+                result.StopPriceStatus = "DATA_MISSING — 하네스 업데이트 필요";
+                result.DataMissing.Add("atr20");
+                return result;
+            }
+
+            if (!atrMultiplier.HasValue && (!currentPrice.HasValue || currentPrice.Value == 0))
+            {
+                result.StopPrice = entryPrice.Value * 0.92;
+                result.StopPriceStatus = "DATA_MISSING — 하네스 업데이트 필요";
+                if (!atr20.HasValue) result.DataMissing.Add("atr20");
+                if (!currentPrice.HasValue || currentPrice.Value == 0) result.DataMissing.Add("current_price");
+                return result;
+            }
+
+            if (!atrMultiplier.HasValue)
+            {
+                double atr20Pct = (atr20!.Value / currentPrice!.Value) * 100;
+                atrMultiplier = atr20Pct >= 8 ? 2.0 : 1.5;
+                result.Atr20Pct = atr20Pct;
+            }
+            else
+            {
+                result.Atr20Pct = (currentPrice.HasValue && currentPrice.Value != 0) 
+                    ? (atr20!.Value / currentPrice.Value) * 100 
+                    : (double?)null;
+            }
+
+            result.AtrMultiplier = atrMultiplier;
+            result.StopPrice = Math.Max(entryPrice.Value * 0.92, entryPrice.Value - atr20!.Value * atrMultiplier.Value);
+            result.StopPriceStatus = "PASS";
+
+            return result;
+        }
+
+        public static StopActionLadderResult ComputeStopActionLadder(Dictionary<string, object> context)
+        {
+            string GetString(string key) => 
+                context.TryGetValue(key, out var val) ? val?.ToString()?.ToUpper() ?? "" : "";
+
+            double GetDouble(string key) =>
+                context.TryGetValue(key, out var val) && double.TryParse(val?.ToString(), out var d) ? d : 0.0;
+
+            int GetInt(string key, int def = 0) =>
+                context.TryGetValue(key, out var val) && int.TryParse(val?.ToString(), out var i) ? i : def;
+
+            bool GetBool(string key) =>
+                context.TryGetValue(key, out var val) && bool.TryParse(val?.ToString(), out var b) && b;
+
+            string timingAction = GetString("timingAction");
+            if (string.IsNullOrEmpty(timingAction)) timingAction = GetString("timing_action");
+
+            int rwPartial = GetInt("rw_partial");
+            int rwPartialExcludingRw2b = GetInt("rw_partial_excluding_rw2b");
+
+            string regimePrelim = GetString("REGIME_PRELIM");
+            if (string.IsNullOrEmpty(regimePrelim)) regimePrelim = GetString("regime_prelim");
+
+            double timingExitScore = GetDouble("timingExitScore");
+            if (timingExitScore == 0) timingExitScore = GetDouble("timing_exit_score");
+
+            double profitPct = GetDouble("profitPct");
+            if (profitPct == 0) profitPct = GetDouble("profit_pct");
+
+            int daysToTimeStop = GetInt("daysToTimeStop", 9999);
+            if (daysToTimeStop == 9999) daysToTimeStop = GetInt("days_to_time_stop", 9999);
+
+            bool trailingStopBreach = GetBool("trailingStopBreach") || GetBool("trailing_stop_breach");
+            bool rw2bFastTrack = GetBool("RW2b_5d_rapid_weakness") || GetBool("rw2b_5d_rapid_weakness");
+
+            if (timingAction == "STOP_OR_TIME_EXIT_READY" || rwPartial >= 4)
+            {
+                return new StopActionLadderResult
+                {
+                    Action = "EXIT_100",
+                    Reason = timingAction == "STOP_OR_TIME_EXIT_READY" ? "STOP_OR_TIME_EXIT_READY" : "RW_EXIT_STRONG",
+                    QuantityPct = 100,
+                    Priority = 1
+                };
+            }
+
+            if (regimePrelim == "RISK_OFF" || regimePrelim == "RISK_OFF_CANDIDATE")
+            {
+                return new StopActionLadderResult
+                {
+                    Action = "REGIME_TRIM_50",
+                    Reason = regimePrelim == "RISK_OFF" ? "REGIME_RISK_OFF" : "REGIME_RISK_OFF_CANDIDATE",
+                    QuantityPct = 50,
+                    Priority = 2
+                };
+            }
+
+            if (rw2bFastTrack && rwPartialExcludingRw2b >= 1)
+            {
+                return new StopActionLadderResult
+                {
+                    Action = "TRIM_50",
+                    Reason = "RW2B_FAST_TRACK",
+                    QuantityPct = 50,
+                    Priority = 2.5
+                };
+            }
+
+            if (rwPartial >= 3 || timingExitScore >= 75)
+            {
+                return new StopActionLadderResult
+                {
+                    Action = "TRIM_70",
+                    Reason = rwPartial >= 3 ? "RW_EXIT" : "TIMING_EXIT_SCORE",
+                    QuantityPct = 70,
+                    Priority = 3
+                };
+            }
+
+            if (trailingStopBreach || rwPartial >= 2 || (rwPartial >= 1 && timingExitScore >= 50))
+            {
+                return new StopActionLadderResult
+                {
+                    Action = "TRIM_50",
+                    Reason = trailingStopBreach ? "TRAILING_STOP_BREACH" : "RW_OR_TIMING_EXIT",
+                    QuantityPct = 50,
+                    Priority = 4
+                };
+            }
+
+            if (profitPct >= 10)
+            {
+                return new StopActionLadderResult
+                {
+                    Action = "TAKE_PROFIT_TIER1",
+                    Reason = "PROFIT_PCT_THRESHOLD",
+                    QuantityPct = 25,
+                    Priority = 5
+                };
+            }
+
+            if (daysToTimeStop <= 0)
+            {
+                return new StopActionLadderResult
+                {
+                    Action = "TIME_EXIT_100",
+                    Reason = "TIME_STOP_EXPIRED",
+                    QuantityPct = 100,
+                    Priority = 6
+                };
+            }
+
+            return new StopActionLadderResult();
+        }
+
+        public static HeatThresholdResult ComputeDynamicHeatThresholds(string regime)
+        {
+            string r = regime?.ToUpper() ?? "";
+            if (r.Contains("EVENT_SHOCK"))
+            {
+                return new HeatThresholdResult { HardBlock = 5.0, Halve = 3.5 };
+            }
+            if (r.Contains("RISK_OFF"))
+            {
+                return new HeatThresholdResult { HardBlock = 7.0, Halve = 5.0 };
+            }
+            if (r.Contains("SECULAR_LEADER") && r.Contains("RISK_ON"))
+            {
+                return new HeatThresholdResult { HardBlock = 13.0, Halve = 9.0 };
+            }
+            if (r.Contains("RISK_ON"))
+            {
+                return new HeatThresholdResult { HardBlock = 12.0, Halve = 8.5 };
+            }
+            return new HeatThresholdResult { HardBlock = 10.0, Halve = 7.0 };
+        }
+    }
+}

src/dotnet/QuantEngine.Core/Domain/KrxTickNormalizer.cs

@@ -0,0 +1,49 @@
+using System;
+
+namespace QuantEngine.Core.Domain
+{
+    public static class KrxTickNormalizer
+    {
+        private static readonly (double Limit, int Tick)[] KrxTickTable = new (double, int)[]
+        {
+            (2000, 1),
+            (5000, 5),
+            (20000, 10),
+            (50000, 50),
+            (200000, 100),
+            (500000, 500),
+            (double.PositiveInfinity, 1000)
+        };
+
+        public static int GetTickUnit(double price)
+        {
+            foreach (var (limit, tick) in KrxTickTable)
+            {
+                if (price < limit)
+                {
+                    return tick;
+                }
+            }
+            return 1000;
+        }
+
+        public static double NormalizeTick(double price)
+        {
+            if (price <= 0) return 0;
+            int tick = GetTickUnit(price);
+            
+            // Round to nearest tick unit
+            double remainder = price % tick;
+            if (remainder == 0) return price;
+
+            if (remainder >= tick / 2.0)
+            {
+                return price + (tick - remainder);
+            }
+            else
+            {
+                return price - remainder;
+            }
+        }
+    }
+}

src/dotnet/QuantEngine.Core/Domain/ProfitLockCalculator.cs

@@ -0,0 +1,66 @@
+using System;
+
+namespace QuantEngine.Core.Domain
+{
+    public class ProfitLockResult
+    {
+        public string RatchetStage { get; set; } = "NORMAL";
+        public double? AutoTrailingStop { get; set; }
+        public string TpLadderAction { get; set; } = "적용 안함";
+        public bool ApexSuperActive { get; set; }
+    }
+
+    public static class ProfitLockCalculator
+    {
+        public static string ClassifyProfitLockStage(double profitPct)
+        {
+            if (profitPct >= 60) return "APEX_SUPER";
+            if (profitPct >= 40) return "APEX_TRAILING";
+            if (profitPct >= 30) return "PROFIT_LOCK_30";
+            if (profitPct >= 20) return "PROFIT_LOCK_20";
+            if (profitPct >= 10) return "PROFIT_LOCK_10";
+            if (profitPct >= 0) return "BREAKEVEN_RATCHET";
+            return "NORMAL";
+        }
+
+        public static ProfitLockResult ComputeTrailingStop(
+            double profitPct,
+            double highestClose,
+            double atr20,
+            double? ratchetStop,
+            double averageCost)
+        {
+            string stage = ClassifyProfitLockStage(profitPct);
+            double baseStop = ratchetStop ?? averageCost;
+            double? trailingStop = null;
+            string tpAction = "적용 안함";
+
+            if (stage == "APEX_SUPER")
+            {
+                double raw = highestClose - 1.2 * atr20;
+                trailingStop = KrxTickNormalizer.NormalizeTick(Math.Max(baseStop, raw));
+                tpAction = "강제 10% 익절 권고";
+            }
+            else if (stage == "APEX_TRAILING")
+            {
+                double raw = highestClose - 1.5 * atr20;
+                trailingStop = KrxTickNormalizer.NormalizeTick(Math.Max(baseStop, raw));
+                tpAction = "부분익절 검토";
+            }
+            else if (stage == "PROFIT_LOCK_30" || stage == "PROFIT_LOCK_20")
+            {
+                double raw = highestClose - 2.0 * atr20;
+                trailingStop = KrxTickNormalizer.NormalizeTick(Math.Max(baseStop, raw));
+                tpAction = "래칫 유지";
+            }
+
+            return new ProfitLockResult
+            {
+                RatchetStage = stage,
+                AutoTrailingStop = trailingStop,
+                TpLadderAction = tpAction,
+                ApexSuperActive = stage == "APEX_SUPER"
+            };
+        }
+    }
+}

src/dotnet/QuantEngine.Core/Domain/PullbackTriggerCalculator.cs

@@ -0,0 +1,42 @@
+using System;
+
+namespace QuantEngine.Core.Domain
+{
+    public class PullbackTriggerResult
+    {
+        public string PullbackEntryVerdict { get; set; } = "ABOVE_PULLBACK_ZONE";
+        public string PullbackState { get; set; } = "BLOCKED";
+        public double PullbackEntryTriggerPrice { get; set; }
+        public double PullbackUpperBand { get; set; }
+    }
+
+    public static class PullbackTriggerCalculator
+    {
+        public static PullbackTriggerResult ComputePullbackTrigger(double close, double ma20, double atr20)
+        {
+            double triggerPrice = KrxTickNormalizer.NormalizeTick(ma20 - 0.5 * atr20);
+            double upperBand = ma20 * 1.03;
+            string verdict;
+            string state;
+
+            if (close <= upperBand)
+            {
+                verdict = "PULLBACK_ZONE";
+                state = "PASS";
+            }
+            else
+            {
+                verdict = "ABOVE_PULLBACK_ZONE";
+                state = "BLOCKED";
+            }
+
+            return new PullbackTriggerResult
+            {
+                PullbackEntryVerdict = verdict,
+                PullbackState = state,
+                PullbackEntryTriggerPrice = triggerPrice,
+                PullbackUpperBand = KrxTickNormalizer.NormalizeTick(upperBand)
+            };
+        }
+    }
+}

src/dotnet/QuantEngine.Core/Domain/SellPriceSanityChecker.cs

@@ -0,0 +1,63 @@
+using System;
+using System.Collections.Generic;
+
+namespace QuantEngine.Core.Domain
+{
+    public class SellPriceSanityResult
+    {
+        public string SellPriceSanityStatus { get; set; } = "PASS";
+        public List<string> SellPriceSanityIssues { get; set; } = new List<string>();
+        public bool HtsAllowed { get; set; } = true;
+        public bool ShadowLedger { get; set; }
+        public string Ticker { get; set; } = string.Empty;
+    }
+
+    public static class SellPriceSanityChecker
+    {
+        public static SellPriceSanityResult CheckSellPriceSanity(
+            double sellLimitPrice,
+            double? stopLossPrice,
+            double prevClose,
+            string ticker = "")
+        {
+            var issues = new List<string>();
+            string status = "PASS";
+
+            if (stopLossPrice.HasValue && sellLimitPrice < stopLossPrice.Value)
+            {
+                issues.Add($"INVALID_PRICE_INVERSION: sell={sellLimitPrice:N0} < stop={stopLossPrice.Value:N0}");
+                status = "INVALID_PRICE_INVERSION";
+            }
+
+            double upperLimit = prevClose * 1.30;
+            if (sellLimitPrice > upperLimit)
+            {
+                issues.Add($"INVALID_UNREALISTIC_PRICE: sell={sellLimitPrice:N0} > prev_close*1.30={upperLimit:N0}");
+                if (status == "PASS")
+                {
+                    status = "INVALID_UNREALISTIC_PRICE";
+                }
+            }
+
+            int tickUnit = KrxTickNormalizer.GetTickUnit(sellLimitPrice);
+            if (sellLimitPrice % tickUnit != 0)
+            {
+                double corrected = KrxTickNormalizer.NormalizeTick(sellLimitPrice);
+                issues.Add($"INVALID_TICK: sell={sellLimitPrice:N0} 호가단위={tickUnit}원 → 정규화={corrected:N0}");
+                if (status == "PASS")
+                {
+                    status = "INVALID_TICK";
+                }
+            }
+
+            return new SellPriceSanityResult
+            {
+                SellPriceSanityStatus = status,
+                SellPriceSanityIssues = issues,
+                HtsAllowed = status == "PASS",
+                ShadowLedger = status != "PASS",
+                Ticker = ticker
+            };
+        }
+    }
+}

src/dotnet/QuantEngine.Core/Interfaces/IKisApiClient.cs

@@ -0,0 +1,14 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace QuantEngine.Core.Interfaces
+{
+    public interface IKisApiClient
+    {
+        Task<string> GetCurrentPriceAsync(string code);
+        Task<string> GetAskingPrice10LevelAsync(string code);
+        Task<string> GetDailyShortSaleAsync(string code, string startDate, string endDate);
+        Task<string> GetDailyItemChartPriceAsync(string code, string startDate, string endDate, string period = "D");
+        Task<string> GetInvestorTrendAsync(string code);
+    }
+}

src/dotnet/QuantEngine.Core/Interfaces/INaverFinanceScraper.cs

@@ -0,0 +1,11 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace QuantEngine.Core.Interfaces
+{
+    public interface INaverFinanceScraper
+    {
+        Task<string> FetchPriceHistoryAsync(string code, int pages = 3);
+        Task<string> FetchForeignInstitutionFlowAsync(string code, int pages = 2);
+    }
+}

src/dotnet/QuantEngine.Core/Interfaces/IWorkspaceRepository.cs

@@ -0,0 +1,31 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using QuantEngine.Core.Models;
+
+namespace QuantEngine.Core.Interfaces
+{
+    public interface IWorkspaceRepository
+    {
+        // Settings
+        Task<IEnumerable<Setting>> GetSettingsAsync();
+        Task<Setting?> GetSettingByKeyAsync(string key);
+        Task<bool> UpsertSettingAsync(Setting setting);
+        Task<bool> DeleteSettingAsync(string key);
+
+        // AccountSnapshot
+        Task<IEnumerable<AccountSnapshot>> GetAccountSnapshotsAsync();
+        Task<bool> InsertAccountSnapshotsAsync(IEnumerable<AccountSnapshot> snapshots);
+        Task<bool> ClearAccountSnapshotsAsync();
+
+        // WorkspaceApproval
+        Task<IEnumerable<WorkspaceApproval>> GetApprovalsAsync();
+        Task<WorkspaceApproval?> GetApprovalAsync(string domain, string targetRef);
+        Task<bool> UpsertApprovalAsync(WorkspaceApproval approval);
+
+        // WorkspaceLock
+        Task<IEnumerable<WorkspaceLock>> GetLocksAsync();
+        Task<WorkspaceLock?> GetLockAsync(string domain, string targetRef);
+        Task<bool> AcquireLockAsync(WorkspaceLock @lock);
+        Task<bool> ReleaseLockAsync(string domain, string targetRef);
+    }
+}

src/dotnet/QuantEngine.Core/Interfaces/IYahooFinanceClient.cs

@@ -0,0 +1,9 @@
+using System.Threading.Tasks;
+
+namespace QuantEngine.Core.Interfaces
+{
+    public interface IYahooFinanceClient
+    {
+        Task<string> FetchHistoricalDataAsync(string symbol, string range = "4mo", string interval = "1d");
+    }
+}

src/dotnet/QuantEngine.Core/Models/AccountSnapshot.cs

@@ -0,0 +1,18 @@
+using System;
+
+namespace QuantEngine.Core.Models
+{
+    public class AccountSnapshot
+    {
+        public int Ordinal { get; set; }
+        public string RowJson { get; set; } = string.Empty;
+        public string CapturedAt { get; set; } = string.Empty;
+        public string Account { get; set; } = string.Empty;
+        public string AccountType { get; set; } = string.Empty;
+        public string Ticker { get; set; } = string.Empty;
+        public string Name { get; set; } = string.Empty;
+        public string ParseStatus { get; set; } = string.Empty;
+        public string UserConfirmed { get; set; } = string.Empty;
+        public string UpdatedAt { get; set; } = string.Empty;
+    }
+}

src/dotnet/QuantEngine.Core/Models/CollectionRun.cs

@@ -0,0 +1,18 @@
+using System;
+
+namespace QuantEngine.Core.Models
+{
+    public class CollectionRun
+    {
+        public string RunId { get; set; } = string.Empty;
+        public string CollectorName { get; set; } = string.Empty;
+        public string StartedAt { get; set; } = string.Empty;
+        public string? FinishedAt { get; set; }
+        public string Status { get; set; } = string.Empty;
+        public string? InputSource { get; set; }
+        public string? OutputJsonPath { get; set; }
+        public string? OutputDbPath { get; set; }
+        public string? Notes { get; set; }
+        public DateTime CreatedAt { get; set; }
+    }
+}

src/dotnet/QuantEngine.Core/Models/CollectionSnapshot.cs

@@ -0,0 +1,19 @@
+using System;
+
+namespace QuantEngine.Core.Models
+{
+    public class CollectionSnapshot
+    {
+        public string RunId { get; set; } = string.Empty;
+        public string DatasetName { get; set; } = string.Empty;
+        public string Ticker { get; set; } = string.Empty;
+        public string? Name { get; set; }
+        public string? Sector { get; set; }
+        public string? AsOfDate { get; set; }
+        public string SourcePriority { get; set; } = string.Empty;
+        public string SourceStatus { get; set; } = string.Empty;
+        public string PayloadJson { get; set; } = string.Empty;
+        public string ProvenanceJson { get; set; } = string.Empty;
+        public DateTime CreatedAt { get; set; }
+    }
+}

src/dotnet/QuantEngine.Core/Models/CollectionSourceError.cs

@@ -0,0 +1,15 @@
+using System;
+
+namespace QuantEngine.Core.Models
+{
+    public class CollectionSourceError
+    {
+        public string RunId { get; set; } = string.Empty;
+        public string? Ticker { get; set; }
+        public string SourceName { get; set; } = string.Empty;
+        public string ErrorKind { get; set; } = string.Empty;
+        public string ErrorMessage { get; set; } = string.Empty;
+        public string? PayloadJson { get; set; }
+        public DateTime CreatedAt { get; set; }
+    }
+}

src/dotnet/QuantEngine.Core/Models/Setting.cs

@@ -0,0 +1,13 @@
+using System;
+
+namespace QuantEngine.Core.Models
+{
+    public class Setting
+    {
+        public int Ordinal { get; set; }
+        public string Key { get; set; } = string.Empty;
+        public string ValueJson { get; set; } = string.Empty;
+        public string Note { get; set; } = string.Empty;
+        public string UpdatedAt { get; set; } = string.Empty;
+    }
+}

src/dotnet/QuantEngine.Core/Models/WorkspaceApproval.cs

@@ -0,0 +1,15 @@
+using System;
+
+namespace QuantEngine.Core.Models
+{
+    public class WorkspaceApproval
+    {
+        public string Domain { get; set; } = string.Empty;
+        public string TargetRef { get; set; } = "*";
+        public string Status { get; set; } = string.Empty;
+        public string ApprovedBy { get; set; } = string.Empty;
+        public string ApprovedAt { get; set; } = string.Empty;
+        public string Note { get; set; } = string.Empty;
+        public string UpdatedAt { get; set; } = string.Empty;
+    }
+}

src/dotnet/QuantEngine.Core/Models/WorkspaceChangeLog.cs

@@ -0,0 +1,17 @@
+using System;
+
+namespace QuantEngine.Core.Models
+{
+    public class WorkspaceChangeLog
+    {
+        public int Id { get; set; }
+        public string Domain { get; set; } = string.Empty;
+        public string Action { get; set; } = string.Empty;
+        public string TargetRef { get; set; } = string.Empty;
+        public string Actor { get; set; } = "system";
+        public string Note { get; set; } = string.Empty;
+        public string BeforeJson { get; set; } = "null";
+        public string AfterJson { get; set; } = "null";
+        public string CreatedAt { get; set; } = string.Empty;
+    }
+}

src/dotnet/QuantEngine.Core/Models/WorkspaceLock.cs

@@ -0,0 +1,13 @@
+using System;
+
+namespace QuantEngine.Core.Models
+{
+    public class WorkspaceLock
+    {
+        public string Domain { get; set; } = string.Empty;
+        public string TargetRef { get; set; } = string.Empty;
+        public string LockedBy { get; set; } = string.Empty;
+        public string Reason { get; set; } = string.Empty;
+        public string LockedAt { get; set; } = string.Empty;
+    }
+}

src/dotnet/QuantEngine.Core/QuantEngine.Core.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

src/dotnet/QuantEngine.Core/bin/Debug/net10.0/QuantEngine.Core.deps.json

@@ -0,0 +1,23 @@
+{
+  "runtimeTarget": {
+    "name": ".NETCoreApp,Version=v10.0",
+    "signature": ""
+  },
+  "compilationOptions": {},
+  "targets": {
+    ".NETCoreApp,Version=v10.0": {
+      "QuantEngine.Core/1.0.0": {
+        "runtime": {
+          "QuantEngine.Core.dll": {}
+        }
+      }
+    }
+  },
+  "libraries": {
+    "QuantEngine.Core/1.0.0": {
+      "type": "project",
+      "serviceable": false,
+      "sha512": ""
+    }
+  }
+}

src/dotnet/QuantEngine.Core/obj/Debug/net10.0/.NETCoreApp,Version=v10.0.AssemblyAttributes.cs

@@ -0,0 +1,4 @@
+// <autogenerated />
+using System;
+using System.Reflection;
+[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETCoreApp,Version=v10.0", FrameworkDisplayName = ".NET 10.0")]

src/dotnet/QuantEngine.Core/obj/Debug/net10.0/QuantEngine.Core.AssemblyInfo.cs

@@ -0,0 +1,22 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+using System;
+using System.Reflection;
+
+[assembly: System.Reflection.AssemblyCompanyAttribute("QuantEngine.Core")]
+[assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
+[assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+9abb8d3bc31eb38d5c27cbd3ca734da4eeec9609")]
+[assembly: System.Reflection.AssemblyProductAttribute("QuantEngine.Core")]
+[assembly: System.Reflection.AssemblyTitleAttribute("QuantEngine.Core")]
+[assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
+
+// MSBuild WriteCodeFragment 클래스에서 생성되었습니다.
+

src/dotnet/QuantEngine.Core/obj/Debug/net10.0/QuantEngine.Core.AssemblyInfoInputs.cache

@@ -0,0 +1 @@
+ca1af8bf50c02703b0e1d3aaa0a84969ccff47847b63e1312eec76ac0cc883ff

src/dotnet/QuantEngine.Core/obj/Debug/net10.0/QuantEngine.Core.GeneratedMSBuildEditorConfig.editorconfig

@@ -0,0 +1,17 @@
+is_global = true
+build_property.TargetFramework = net10.0
+build_property.TargetFrameworkIdentifier = .NETCoreApp
+build_property.TargetFrameworkVersion = v10.0
+build_property.TargetPlatformMinVersion = 
+build_property.UsingMicrosoftNETSdkWeb = 
+build_property.ProjectTypeGuids = 
+build_property.InvariantGlobalization = 
+build_property.PlatformNeutralAssembly = 
+build_property.EnforceExtendedAnalyzerRules = 
+build_property._SupportedPlatformList = Linux,macOS,Windows
+build_property.RootNamespace = QuantEngine.Core
+build_property.ProjectDir = C:\Temp\data_feed\src\dotnet\QuantEngine.Core\
+build_property.EnableComHosting = 
+build_property.EnableGeneratedComInterfaceComImportInterop = 
+build_property.EffectiveAnalysisLevelStyle = 10.0
+build_property.EnableCodeStyleSeverity = 

src/dotnet/QuantEngine.Core/obj/Debug/net10.0/QuantEngine.Core.GlobalUsings.g.cs

@@ -0,0 +1,8 @@
+// <auto-generated/>
+global using System;
+global using System.Collections.Generic;
+global using System.IO;
+global using System.Linq;
+global using System.Net.Http;
+global using System.Threading;
+global using System.Threading.Tasks;

src/dotnet/QuantEngine.Core/obj/Debug/net10.0/QuantEngine.Core.csproj.CoreCompileInputs.cache

@@ -0,0 +1 @@
+1d4729b2c00a78c9f41964249ce49a8c7cd8ac8d66a2dde519827dd3b7e693fd

src/dotnet/QuantEngine.Core/obj/Debug/net10.0/QuantEngine.Core.csproj.FileListAbsolute.txt

@@ -0,0 +1,11 @@
+C:\Temp\data_feed\src\dotnet\QuantEngine.Core\bin\Debug\net10.0\QuantEngine.Core.deps.json
+C:\Temp\data_feed\src\dotnet\QuantEngine.Core\bin\Debug\net10.0\QuantEngine.Core.dll
+C:\Temp\data_feed\src\dotnet\QuantEngine.Core\bin\Debug\net10.0\QuantEngine.Core.pdb
+C:\Temp\data_feed\src\dotnet\QuantEngine.Core\obj\Debug\net10.0\QuantEngine.Core.GeneratedMSBuildEditorConfig.editorconfig
+C:\Temp\data_feed\src\dotnet\QuantEngine.Core\obj\Debug\net10.0\QuantEngine.Core.AssemblyInfoInputs.cache
+C:\Temp\data_feed\src\dotnet\QuantEngine.Core\obj\Debug\net10.0\QuantEngine.Core.AssemblyInfo.cs
+C:\Temp\data_feed\src\dotnet\QuantEngine.Core\obj\Debug\net10.0\QuantEngine.Core.csproj.CoreCompileInputs.cache
+C:\Temp\data_feed\src\dotnet\QuantEngine.Core\obj\Debug\net10.0\QuantEngine.Core.dll
+C:\Temp\data_feed\src\dotnet\QuantEngine.Core\obj\Debug\net10.0\refint\QuantEngine.Core.dll
+C:\Temp\data_feed\src\dotnet\QuantEngine.Core\obj\Debug\net10.0\QuantEngine.Core.pdb
+C:\Temp\data_feed\src\dotnet\QuantEngine.Core\obj\Debug\net10.0\ref\QuantEngine.Core.dll

src/dotnet/QuantEngine.Core/obj/QuantEngine.Core.csproj.nuget.dgspec.json

@@ -0,0 +1,350 @@
+{
+  "format": 1,
+  "restore": {
+    "C:\\Temp\\data_feed\\src\\dotnet\\QuantEngine.Core\\QuantEngine.Core.csproj": {}
+  },
+  "projects": {
+    "C:\\Temp\\data_feed\\src\\dotnet\\QuantEngine.Core\\QuantEngine.Core.csproj": {
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+          "System.Security.Cryptography.Primitives": "(,4.3.32767]",
+          "System.Security.Cryptography.X509Certificates": "(,4.3.32767]",
+          "System.Security.Principal": "(,4.3.32767]",
+          "System.Security.Principal.Windows": "(,5.0.32767]",
+          "System.Security.SecureString": "(,4.3.32767]",
+          "System.Text.Encoding": "(,4.3.32767]",
+          "System.Text.Encoding.CodePages": "(,10.0.32767]",
+          "System.Text.Encoding.Extensions": "(,4.3.32767]",
+          "System.Text.Encodings.Web": "(,10.0.32767]",
+          "System.Text.Json": "(,10.0.32767]",
+          "System.Text.RegularExpressions": "(,4.3.32767]",
+          "System.Threading": "(,4.3.32767]",
+          "System.Threading.AccessControl": "(,10.0.32767]",
+          "System.Threading.Channels": "(,10.0.32767]",
+          "System.Threading.Overlapped": "(,4.3.32767]",
+          "System.Threading.Tasks": "(,4.3.32767]",
+          "System.Threading.Tasks.Dataflow": "(,10.0.32767]",
+          "System.Threading.Tasks.Extensions": "(,5.0.32767]",
+          "System.Threading.Tasks.Parallel": "(,4.3.32767]",
+          "System.Threading.Thread": "(,4.3.32767]",
+          "System.Threading.ThreadPool": "(,4.3.32767]",
+          "System.Threading.Timer": "(,4.3.32767]",
+          "System.ValueTuple": "(,4.5.32767]",
+          "System.Xml.ReaderWriter": "(,4.3.32767]",
+          "System.Xml.XDocument": "(,4.3.32767]",
+          "System.Xml.XmlDocument": "(,4.3.32767]",
+          "System.Xml.XmlSerializer": "(,4.3.32767]",
+          "System.Xml.XPath": "(,4.3.32767]",
+          "System.Xml.XPath.XDocument": "(,5.0.32767]"
+        }
+      }
+    }
+  }
+}

src/dotnet/QuantEngine.Core/obj/project.nuget.cache

@@ -0,0 +1,8 @@
+{
+  "version": 2,
+  "dgSpecHash": "fxehXLXYtu4=",
+  "success": true,
+  "projectFilePath": "C:\\Temp\\data_feed\\src\\dotnet\\QuantEngine.Core\\QuantEngine.Core.csproj",
+  "expectedPackageFiles": [],
+  "logs": []
+}

src/dotnet/QuantEngine.Infrastructure/Class1.cs

@@ -0,0 +1,6 @@
+namespace QuantEngine.Infrastructure;
+
+public class Class1
+{
+
+}

src/dotnet/QuantEngine.Infrastructure/Data/DbConnectionFactory.cs

@@ -0,0 +1,25 @@
+using System.Data;
+using Npgsql;
+
+namespace QuantEngine.Infrastructure.Data
+{
+    public interface IDbConnectionFactory
+    {
+        IDbConnection CreateConnection();
+    }
+
+    public class DbConnectionFactory : IDbConnectionFactory
+    {
+        private readonly string _connectionString;
+
+        public DbConnectionFactory(string connectionString)
+        {
+            _connectionString = connectionString;
+        }
+
+        public IDbConnection CreateConnection()
+        {
+            return new NpgsqlConnection(_connectionString);
+        }
+    }
+}

src/dotnet/QuantEngine.Infrastructure/Data/DbMigrator.cs

@@ -0,0 +1,161 @@
+using System.Data;
+using Dapper;
+
+namespace QuantEngine.Infrastructure.Data
+{
+    public class DbMigrator
+    {
+        private readonly IDbConnectionFactory _connectionFactory;
+
+        public DbMigrator(IDbConnectionFactory connectionFactory)
+        {
+            _connectionFactory = connectionFactory;
+        }
+
+        public void Migrate()
+        {
+            using var conn = _connectionFactory.CreateConnection();
+            conn.Open();
+
+            // Create schema if not exists
+            conn.Execute("CREATE SCHEMA IF NOT EXISTS quantengine;");
+
+            // 0. kis_tokens
+            conn.Execute(@"
+                CREATE TABLE IF NOT EXISTS kis_tokens (
+                    account TEXT PRIMARY KEY,
+                    access_token TEXT NOT NULL,
+                    expires_at TEXT NOT NULL,
+                    updated_at TEXT NOT NULL
+                );
+            ");
+
+            // 1. collection_runs
+            conn.Execute(@"
+                CREATE TABLE IF NOT EXISTS collection_runs (
+                    run_id TEXT PRIMARY KEY,
+                    collector_name TEXT NOT NULL,
+                    started_at TEXT NOT NULL,
+                    finished_at TEXT,
+                    status TEXT NOT NULL,
+                    input_source TEXT,
+                    output_json_path TEXT,
+                    output_db_path TEXT,
+                    notes TEXT,
+                    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+                );
+            ");
+
+            // 2. collection_snapshots
+            conn.Execute(@"
+                CREATE TABLE IF NOT EXISTS collection_snapshots (
+                    run_id TEXT NOT NULL,
+                    dataset_name TEXT NOT NULL,
+                    ticker TEXT NOT NULL,
+                    name TEXT,
+                    sector TEXT,
+                    as_of_date TEXT,
+                    source_priority TEXT,
+                    source_status TEXT,
+                    payload_json TEXT NOT NULL,
+                    provenance_json TEXT NOT NULL,
+                    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+                    PRIMARY KEY (run_id, dataset_name, ticker)
+                );
+                CREATE INDEX IF NOT EXISTS idx_collection_snapshots_ticker_time ON collection_snapshots(ticker, created_at DESC);
+            ");
+
+            // 3. collection_source_errors
+            conn.Execute(@"
+                CREATE TABLE IF NOT EXISTS collection_source_errors (
+                    run_id TEXT NOT NULL,
+                    ticker TEXT,
+                    source_name TEXT NOT NULL,
+                    error_kind TEXT NOT NULL,
+                    error_message TEXT NOT NULL,
+                    payload_json TEXT,
+                    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+                );
+                CREATE INDEX IF NOT EXISTS idx_collection_source_errors_run ON collection_source_errors(run_id, source_name);
+            ");
+
+            // 4. settings
+            conn.Execute(@"
+                CREATE TABLE IF NOT EXISTS settings (
+                    ordinal INT NOT NULL,
+                    key TEXT PRIMARY KEY,
+                    value_json TEXT NOT NULL,
+                    note TEXT NOT NULL DEFAULT '',
+                    updated_at TEXT NOT NULL
+                );
+            ");
+
+            // 5. account_snapshot
+            conn.Execute(@"
+                CREATE TABLE IF NOT EXISTS account_snapshot (
+                    ordinal INT NOT NULL,
+                    row_json TEXT NOT NULL,
+                    captured_at TEXT NOT NULL DEFAULT '',
+                    account TEXT NOT NULL DEFAULT '',
+                    account_type TEXT NOT NULL DEFAULT '',
+                    ticker TEXT NOT NULL DEFAULT '',
+                    name TEXT NOT NULL DEFAULT '',
+                    parse_status TEXT NOT NULL DEFAULT '',
+                    user_confirmed TEXT NOT NULL DEFAULT '',
+                    updated_at TEXT NOT NULL
+                );
+                CREATE INDEX IF NOT EXISTS idx_account_snapshot_captured_at ON account_snapshot(captured_at);
+                CREATE INDEX IF NOT EXISTS idx_account_snapshot_ticker ON account_snapshot(ticker);
+            ");
+
+            // 6. workspace_meta
+            conn.Execute(@"
+                CREATE TABLE IF NOT EXISTS workspace_meta (
+                    key TEXT PRIMARY KEY,
+                    value_json TEXT NOT NULL
+                );
+            ");
+
+            // 7. workspace_change_log
+            conn.Execute(@"
+                CREATE TABLE IF NOT EXISTS workspace_change_log (
+                    id SERIAL PRIMARY KEY,
+                    domain TEXT NOT NULL,
+                    action TEXT NOT NULL,
+                    target_ref TEXT NOT NULL DEFAULT '',
+                    actor TEXT NOT NULL DEFAULT 'system',
+                    note TEXT NOT NULL DEFAULT '',
+                    before_json TEXT NOT NULL DEFAULT 'null',
+                    after_json TEXT NOT NULL DEFAULT 'null',
+                    created_at TEXT NOT NULL
+                );
+            ");
+
+            // 8. workspace_approval_v2
+            conn.Execute(@"
+                CREATE TABLE IF NOT EXISTS workspace_approval_v2 (
+                    domain TEXT NOT NULL,
+                    target_ref TEXT NOT NULL DEFAULT '*',
+                    status TEXT NOT NULL,
+                    approved_by TEXT NOT NULL DEFAULT '',
+                    approved_at TEXT NOT NULL DEFAULT '',
+                    note TEXT NOT NULL DEFAULT '',
+                    updated_at TEXT NOT NULL,
+                    PRIMARY KEY (domain, target_ref)
+                );
+            ");
+
+            // 9. workspace_lock
+            conn.Execute(@"
+                CREATE TABLE IF NOT EXISTS workspace_lock (
+                    domain TEXT NOT NULL,
+                    target_ref TEXT NOT NULL DEFAULT '',
+                    locked_by TEXT NOT NULL DEFAULT '',
+                    reason TEXT NOT NULL DEFAULT '',
+                    locked_at TEXT NOT NULL,
+                    PRIMARY KEY (domain, target_ref)
+                );
+            ");
+        }
+    }
+}

src/dotnet/QuantEngine.Infrastructure/External/KisApiClient.cs

@@ -0,0 +1,245 @@
+using System;
+using System.Collections.Generic;
+using System.Net.Http;
+using System.Net.Http.Headers;
+using System.Net.Http.Json;
+using System.Text.Json;
+using System.Threading.Tasks;
+using Dapper;
+using QuantEngine.Core.Interfaces;
+using QuantEngine.Infrastructure.Data;
+
+namespace QuantEngine.Infrastructure.External
+{
+    public class KisCredentials
+    {
+        public string AppKey { get; }
+        public string AppSecret { get; }
+        public string Account { get; } // "real" | "mock"
+        public string Domain { get; }
+
+        public KisCredentials(string appKey, string appSecret, string account)
+        {
+            AppKey = appKey;
+            AppSecret = appSecret;
+            Account = account;
+            Domain = account == "real" 
+                ? "https://openapi.koreainvestment.com:9443" 
+                : "https://openapivts.koreainvestment.com:29443";
+        }
+
+        public static KisCredentials Load(string account = "mock")
+        {
+            string keyVar = account == "real" ? "KIS_APP_Key" : "KIS_APP_Key_TEST";
+            string secretVar = account == "real" ? "KIS_APP_Secret" : "KIS_APP_Secret_TEST";
+
+            string? appKey = Environment.GetEnvironmentVariable(keyVar);
+            string? appSecret = Environment.GetEnvironmentVariable(secretVar);
+
+            if (string.IsNullOrEmpty(appKey) || string.IsNullOrEmpty(appSecret))
+            {
+                // Fallback registry checks are not cross-platform and environment variables should be defined.
+                // In production/Linux it is env-only.
+                throw new InvalidOperationException(
+                    $"KIS Credentials Environment Variables missing: {keyVar} or {secretVar}."
+                );
+            }
+
+            return new KisCredentials(appKey, appSecret, account);
+        }
+    }
+
+    public class KisApiClient : IKisApiClient
+    {
+        private readonly HttpClient _httpClient;
+        private readonly IDbConnectionFactory _dbConnectionFactory;
+        private readonly KisCredentials _creds;
+
+        private static readonly string[] ForbiddenPathSubstrings = { "/trading/" };
+        private static readonly string[] ForbiddenTrIdPrefixes = { "TTTC08", "VTTC08", "TTTC01", "VTTC01", "TTTC8434R", "VTTC8434R" };
+
+        public KisApiClient(HttpClient httpClient, IDbConnectionFactory dbConnectionFactory, string account = "mock")
+        {
+            _httpClient = httpClient;
+            _dbConnectionFactory = dbConnectionFactory;
+            _creds = KisCredentials.Load(account);
+        }
+
+        private void AssertReadOnly(string path, string trId)
+        {
+            foreach (var forbidden in ForbiddenPathSubstrings)
+            {
+                if (path.Contains(forbidden, StringComparison.OrdinalIgnoreCase))
+                {
+                    throw new InvalidOperationException($"BLOCKED: 주문 관련 경로 호출 시도 차단 — path={path}");
+                }
+            }
+            foreach (var prefix in ForbiddenTrIdPrefixes)
+            {
+                if (trId.StartsWith(prefix, StringComparison.OrdinalIgnoreCase))
+                {
+                    throw new InvalidOperationException($"BLOCKED: 주문 관련 TR_ID 호출 시도 차단 — tr_id={trId}");
+                }
+            }
+        }
+
+        private async Task<string> IssueOrReuseTokenAsync()
+        {
+            using var conn = _dbConnectionFactory.CreateConnection();
+            conn.Open();
+
+            // 1. Try to load cached token
+            var cached = await conn.QueryFirstOrDefaultAsync<(string access_token, string expires_at)>(
+                "SELECT access_token, expires_at FROM quantengine.kis_tokens WHERE account = @Account",
+                new { Account = _creds.Account }
+            );
+
+            if (cached.access_token != null)
+            {
+                if (DateTime.TryParse(cached.expires_at, out var expiresAtUtc))
+                {
+                    // Reuse token if it has more than 10 minutes left before expiration
+                    if (DateTime.UtcNow < expiresAtUtc.AddMinutes(-10))
+                    {
+                        return cached.access_token;
+                    }
+                }
+            }
+
+            // 2. Request new token from KIS API
+            var requestUrl = $"{_creds.Domain}/oauth2/tokenP";
+            var requestBody = new
+            {
+                grant_type = "client_credentials",
+                appkey = _creds.AppKey,
+                appsecret = _creds.AppSecret
+            };
+
+            var response = await _httpClient.PostAsJsonAsync(requestUrl, requestBody);
+            response.EnsureSuccessStatusCode();
+
+            var resData = await response.Content.ReadFromJsonAsync<JsonElement>();
+            var accessToken = resData.GetProperty("access_token").GetString() 
+                ?? throw new InvalidOperationException("Failed to parse access_token from response.");
+            var expiresInSec = resData.GetProperty("expires_in").GetInt32();
+            var expiresAt = DateTime.UtcNow.AddSeconds(expiresInSec);
+
+            // 3. Upsert token cache into PG database
+            await conn.ExecuteAsync(@"
+                INSERT INTO quantengine.kis_tokens (account, access_token, expires_at, updated_at)
+                VALUES (@Account, @AccessToken, @ExpiresAt, @UpdatedAt)
+                ON CONFLICT (account) DO UPDATE SET
+                    access_token = EXCLUDED.access_token,
+                    expires_at = EXCLUDED.expires_at,
+                    updated_at = EXCLUDED.updated_at",
+                new
+                {
+                    Account = _creds.Account,
+                    AccessToken = accessToken,
+                    ExpiresAt = expiresAt.ToString("o"),
+                    UpdatedAt = DateTime.UtcNow.ToString("o")
+                }
+            );
+
+            return accessToken;
+        }
+
+        private async Task<string> SendRequestAsync(string path, string trId, Dictionary<string, string> queryParams)
+        {
+            AssertReadOnly(path, trId);
+            var token = await IssueOrReuseTokenAsync();
+
+            var queryBuilder = new List<string>();
+            foreach (var kvp in queryParams)
+            {
+                queryBuilder.Add($"{Uri.EscapeDataString(kvp.Key)}={Uri.EscapeDataString(kvp.Value)}");
+            }
+            var fullUrl = $"{_creds.Domain}{path}?{string.Join("&", queryBuilder)}";
+
+            using var request = new HttpRequestMessage(HttpMethod.Get, fullUrl);
+            request.Headers.Accept.Clear();
+            request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
+            request.Headers.Add("authorization", $"Bearer {token}");
+            request.Headers.Add("appkey", _creds.AppKey);
+            request.Headers.Add("appsecret", _creds.AppSecret);
+            request.Headers.Add("tr_id", trId);
+            request.Headers.Add("custtype", "P");
+
+            var response = await _httpClient.SendAsync(request);
+            response.EnsureSuccessStatusCode();
+
+            return await response.Content.ReadAsStringAsync();
+        }
+
+        public Task<string> GetCurrentPriceAsync(string code)
+        {
+            return SendRequestAsync(
+                "/uapi/domestic-stock/v1/quotations/inquire-price", 
+                "FHKST01010100",
+                new Dictionary<string, string>
+                {
+                    { "FID_COND_MRKT_DIV_CODE", "J" },
+                    { "FID_INPUT_ISCD", code }
+                }
+            );
+        }
+
+        public Task<string> GetAskingPrice10LevelAsync(string code)
+        {
+            return SendRequestAsync(
+                "/uapi/domestic-stock/v1/quotations/inquire-asking-price-exp-ccn", 
+                "FHKST01010200",
+                new Dictionary<string, string>
+                {
+                    { "FID_COND_MRKT_DIV_CODE", "J" },
+                    { "FID_INPUT_ISCD", code }
+                }
+            );
+        }
+
+        public Task<string> GetDailyShortSaleAsync(string code, string startDate, string endDate)
+        {
+            return SendRequestAsync(
+                "/uapi/domestic-stock/v1/quotations/daily-short-sale", 
+                "FHPST04830000",
+                new Dictionary<string, string>
+                {
+                    { "FID_COND_MRKT_DIV_CODE", "J" },
+                    { "FID_INPUT_ISCD", code },
+                    { "FID_INPUT_DATE_1", startDate },
+                    { "FID_INPUT_DATE_2", endDate }
+                }
+            );
+        }
+
+        public Task<string> GetDailyItemChartPriceAsync(string code, string startDate, string endDate, string period = "D")
+        {
+            return SendRequestAsync(
+                "/uapi/domestic-stock/v1/quotations/inquire-daily-itemchartprice", 
+                "FHKST03010100",
+                new Dictionary<string, string>
+                {
+                    { "FID_COND_MRKT_DIV_CODE", "J" },
+                    { "FID_INPUT_ISCD", code },
+                    { "FID_INPUT_DATE_1", startDate },
+                    { "FID_INPUT_DATE_2", endDate },
+                    { "FID_PERIOD_DIV_CODE", period },
+                    { "FID_ORG_ADJ_PRC", "0" }
+                }
+            );
+        }
+
+        public Task<string> GetInvestorTrendAsync(string code)
+        {
+            return SendRequestAsync(
+                "/uapi/domestic-stock/v1/quotations/inquire-investor", 
+                "FHKST01010900",
+                new Dictionary<string, string>
+                {
+                    { "FID_COND_MRKT_DIV_CODE", "J" },
+                    { "FID_INPUT_ISCD", code }
+                }
+            );
+        }
+    }
+}

src/dotnet/QuantEngine.Infrastructure/External/NaverFinanceScraper.cs

@@ -0,0 +1,163 @@
+using System;
+using System.Collections.Generic;
+using System.Net.Http;
+using System.Text;
+using System.Text.Json;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using QuantEngine.Core.Interfaces;
+
+namespace QuantEngine.Infrastructure.External
+{
+    public class NaverFinanceScraper : INaverFinanceScraper
+    {
+        private readonly HttpClient _httpClient;
+        private const string UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0 Safari/537.36";
+        private const string Referer = "https://finance.naver.com/";
+
+        public NaverFinanceScraper(HttpClient httpClient)
+        {
+            _httpClient = httpClient;
+            // Register CodePages encoding provider to support EUC-KR
+            Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
+        }
+
+        private double CleanNumber(string text)
+        {
+            if (string.IsNullOrWhiteSpace(text)) return 0.0;
+            var cleaned = text.Replace(",", "").Replace("+", "").Replace("%", "").Trim();
+            return double.TryParse(cleaned, out var result) ? result : 0.0;
+        }
+
+        public async Task<string> FetchPriceHistoryAsync(string code, int pages = 3)
+        {
+            var rows = new List<Dictionary<string, object>>();
+            var eucKr = Encoding.GetEncoding("euc-kr");
+
+            for (int page = 1; page <= pages; page++)
+            {
+                var url = $"https://finance.naver.com/item/sise_day.naver?code={code}&page={page}";
+                
+                using var request = new HttpRequestMessage(HttpMethod.Get, url);
+                request.Headers.Add("User-Agent", UserAgent);
+                request.Headers.Add("Referer", Referer);
+
+                var response = await _httpClient.SendAsync(request);
+                if (response.StatusCode == System.Net.HttpStatusCode.Forbidden)
+                {
+                    return JsonSerializer.Serialize(new
+                    {
+                        status = "CLOUDFLARE_BLOCKED_403",
+                        rows = new List<object>(),
+                        error = "Cloudflare rejected request (403 Forbidden)",
+                        source_url = url
+                    });
+                }
+                response.EnsureSuccessStatusCode();
+
+                var bytes = await response.Content.ReadAsByteArrayAsync();
+                var html = eucKr.GetString(bytes);
+
+                // Simple regex parser for table rows
+                var trMatches = Regex.Matches(html, @"<tr[^>]*>([\s\S]*?)<\/tr>");
+                foreach (Match trMatch in trMatches)
+                {
+                    var trContent = trMatch.Groups[1].Value;
+                    var tdMatches = Regex.Matches(trContent, @"<td[^>]*>([\s\S]*?)<\/td>");
+                    if (tdMatches.Count == 7)
+                    {
+                        var dateText = Regex.Replace(tdMatches[0].Groups[1].Value, @"<[^>]*>", "").Trim();
+                        if (string.IsNullOrEmpty(dateText) || !dateText.Contains(".")) continue;
+
+                        rows.Add(new Dictionary<string, object>
+                        {
+                            { "date", dateText.Replace(".", "-") },
+                            { "close", CleanNumber(Regex.Replace(tdMatches[1].Groups[1].Value, @"<[^>]*>", "")) },
+                            { "open", CleanNumber(Regex.Replace(tdMatches[3].Groups[1].Value, @"<[^>]*>", "")) },
+                            { "high", CleanNumber(Regex.Replace(tdMatches[4].Groups[1].Value, @"<[^>]*>", "")) },
+                            { "low", CleanNumber(Regex.Replace(tdMatches[5].Groups[1].Value, @"<[^>]*>", "")) },
+                            { "volume", CleanNumber(Regex.Replace(tdMatches[6].Groups[1].Value, @"<[^>]*>", "")) }
+                        });
+                    }
+                }
+            }
+
+            if (rows.Count == 0)
+            {
+                return JsonSerializer.Serialize(new { status = "DATA_MISSING", rows = new List<object>(), source_url = Referer });
+            }
+
+            return JsonSerializer.Serialize(new
+            {
+                status = "OK",
+                rows = rows,
+                source_url = $"https://finance.naver.com/item/sise_day.naver?code={code}",
+                source_as_of = DateTime.UtcNow.AddHours(9).ToString("o")
+            });
+        }
+
+        public async Task<string> FetchForeignInstitutionFlowAsync(string code, int pages = 2)
+        {
+            var rows = new List<Dictionary<string, object>>();
+            var eucKr = Encoding.GetEncoding("euc-kr");
+
+            for (int page = 1; page <= pages; page++)
+            {
+                var url = $"https://finance.naver.com/item/frgn.naver?code={code}&page={page}";
+
+                using var request = new HttpRequestMessage(HttpMethod.Get, url);
+                request.Headers.Add("User-Agent", UserAgent);
+                request.Headers.Add("Referer", Referer);
+
+                var response = await _httpClient.SendAsync(request);
+                if (response.StatusCode == System.Net.HttpStatusCode.Forbidden)
+                {
+                    return JsonSerializer.Serialize(new
+                    {
+                        status = "CLOUDFLARE_BLOCKED_403",
+                        rows = new List<object>(),
+                        error = "Cloudflare rejected request (403 Forbidden)",
+                        source_url = url
+                    });
+                }
+                response.EnsureSuccessStatusCode();
+
+                var bytes = await response.Content.ReadAsByteArrayAsync();
+                var html = eucKr.GetString(bytes);
+
+                var trMatches = Regex.Matches(html, @"<tr[^>]*>([\s\S]*?)<\/tr>");
+                foreach (Match trMatch in trMatches)
+                {
+                    var trContent = trMatch.Groups[1].Value;
+                    var tdMatches = Regex.Matches(trContent, @"<td[^>]*>([\s\S]*?)<\/td>");
+                    if (tdMatches.Count >= 8)
+                    {
+                        var dateText = Regex.Replace(tdMatches[0].Groups[1].Value, @"<[^>]*>", "").Trim();
+                        if (string.IsNullOrEmpty(dateText) || !dateText.Contains(".")) continue;
+
+                        rows.Add(new Dictionary<string, object>
+                        {
+                            { "date", dateText.Replace(".", "-") },
+                            { "close", CleanNumber(Regex.Replace(tdMatches[1].Groups[1].Value, @"<[^>]*>", "")) },
+                            { "inst_net", CleanNumber(Regex.Replace(tdMatches[5].Groups[1].Value, @"<[^>]*>", "")) },
+                            { "frgn_net", CleanNumber(Regex.Replace(tdMatches[6].Groups[1].Value, @"<[^>]*>", "")) }
+                        });
+                    }
+                }
+            }
+
+            if (rows.Count == 0)
+            {
+                return JsonSerializer.Serialize(new { status = "DATA_MISSING", rows = new List<object>() });
+            }
+
+            return JsonSerializer.Serialize(new
+            {
+                status = "OK",
+                rows = rows,
+                source_url = $"https://finance.naver.com/item/frgn.naver?code={code}",
+                source_as_of = DateTime.UtcNow.AddHours(9).ToString("o")
+            });
+        }
+    }
+}

src/dotnet/QuantEngine.Infrastructure/External/YahooFinanceClient.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Net.Http;
+using System.Threading.Tasks;
+using QuantEngine.Core.Interfaces;
+
+namespace QuantEngine.Infrastructure.External
+{
+    public class YahooFinanceClient : IYahooFinanceClient
+    {
+        private readonly HttpClient _httpClient;
+        private const string UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0 Safari/537.36";
+
+        public YahooFinanceClient(HttpClient httpClient)
+        {
+            _httpClient = httpClient;
+        }
+
+        public async Task<string> FetchHistoricalDataAsync(string symbol, string range = "4mo", string interval = "1d")
+        {
+            var url = $"https://query1.finance.yahoo.com/v8/finance/chart/{symbol}?range={range}&interval={interval}";
+            using var request = new HttpRequestMessage(HttpMethod.Get, url);
+            request.Headers.Add("User-Agent", UserAgent);
+
+            var response = await _httpClient.SendAsync(request);
+            response.EnsureSuccessStatusCode();
+
+            return await response.Content.ReadAsStringAsync();
+        }
+    }
+}

src/dotnet/QuantEngine.Infrastructure/QuantEngine.Infrastructure.csproj

@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <ItemGroup>
+    <ProjectReference Include="..\QuantEngine.Core\QuantEngine.Core.csproj" />
+    <ProjectReference Include="..\QuantEngine.Application\QuantEngine.Application.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Dapper" Version="2.1.79" />
+    <PackageReference Include="Npgsql" Version="10.0.3" />
+    <PackageReference Include="System.Text.Encoding.CodePages" Version="10.0.9" />
+  </ItemGroup>
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

src/dotnet/QuantEngine.Infrastructure/Repositories/WorkspaceRepository.cs

@@ -0,0 +1,192 @@
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using Dapper;
+using QuantEngine.Core.Interfaces;
+using QuantEngine.Core.Models;
+using QuantEngine.Infrastructure.Data;
+
+namespace QuantEngine.Infrastructure.Repositories
+{
+    public class WorkspaceRepository : IWorkspaceRepository
+    {
+        private readonly IDbConnectionFactory _connectionFactory;
+
+        public WorkspaceRepository(IDbConnectionFactory connectionFactory)
+        {
+            _connectionFactory = connectionFactory;
+        }
+
+        // Settings
+        public async Task<IEnumerable<Setting>> GetSettingsAsync()
+        {
+            using var conn = _connectionFactory.CreateConnection();
+            return await conn.QueryAsync<Setting>(
+                "SELECT ordinal, key, value_json as ValueJson, note, updated_at as UpdatedAt FROM quantengine.settings ORDER BY ordinal ASC"
+            );
+        }
+
+        public async Task<Setting?> GetSettingByKeyAsync(string key)
+        {
+            using var conn = _connectionFactory.CreateConnection();
+            return await conn.QueryFirstOrDefaultAsync<Setting>(
+                "SELECT ordinal, key, value_json as ValueJson, note, updated_at as UpdatedAt FROM quantengine.settings WHERE key = @Key",
+                new { Key = key }
+            );
+        }
+
+        public async Task<bool> UpsertSettingAsync(Setting setting)
+        {
+            using var conn = _connectionFactory.CreateConnection();
+            var affected = await conn.ExecuteAsync(@"
+                INSERT INTO quantengine.settings (ordinal, key, value_json, note, updated_at)
+                VALUES (@Ordinal, @Key, @ValueJson, @Note, @UpdatedAt)
+                ON CONFLICT (key) DO UPDATE SET
+                    ordinal = EXCLUDED.ordinal,
+                    value_json = EXCLUDED.value_json,
+                    note = EXCLUDED.note,
+                    updated_at = EXCLUDED.updated_at",
+                setting
+            );
+            return affected > 0;
+        }
+
+        public async Task<bool> DeleteSettingAsync(string key)
+        {
+            using var conn = _connectionFactory.CreateConnection();
+            var affected = await conn.ExecuteAsync(
+                "DELETE FROM quantengine.settings WHERE key = @Key",
+                new { Key = key }
+            );
+            return affected > 0;
+        }
+
+        // AccountSnapshot
+        public async Task<IEnumerable<AccountSnapshot>> GetAccountSnapshotsAsync()
+        {
+            using var conn = _connectionFactory.CreateConnection();
+            return await conn.QueryAsync<AccountSnapshot>(@"
+                SELECT ordinal, row_json as RowJson, captured_at as CapturedAt, account, account_type as AccountType, 
+                       ticker, name, parse_status as ParseStatus, user_confirmed as UserConfirmed, updated_at as UpdatedAt 
+                FROM quantengine.account_snapshot 
+                ORDER BY ordinal ASC"
+            );
+        }
+
+        public async Task<bool> InsertAccountSnapshotsAsync(IEnumerable<AccountSnapshot> snapshots)
+        {
+            using var conn = _connectionFactory.CreateConnection();
+            conn.Open();
+            using var tx = conn.BeginTransaction();
+            try
+            {
+                foreach (var snapshot in snapshots)
+                {
+                    await conn.ExecuteAsync(@"
+                        INSERT INTO quantengine.account_snapshot (ordinal, row_json, captured_at, account, account_type, ticker, name, parse_status, user_confirmed, updated_at)
+                        VALUES (@Ordinal, @RowJson, @CapturedAt, @Account, @AccountType, @Ticker, @Name, @ParseStatus, @UserConfirmed, @UpdatedAt)",
+                        snapshot,
+                        tx
+                    );
+                }
+                tx.Commit();
+                return true;
+            }
+            catch
+            {
+                tx.Rollback();
+                throw;
+            }
+        }
+
+        public async Task<bool> ClearAccountSnapshotsAsync()
+        {
+            using var conn = _connectionFactory.CreateConnection();
+            var affected = await conn.ExecuteAsync("DELETE FROM quantengine.account_snapshot");
+            return affected >= 0;
+        }
+
+        // WorkspaceApproval
+        public async Task<IEnumerable<WorkspaceApproval>> GetApprovalsAsync()
+        {
+            using var conn = _connectionFactory.CreateConnection();
+            return await conn.QueryAsync<WorkspaceApproval>(@"
+                SELECT domain, target_ref as TargetRef, status, approved_by as ApprovedBy, 
+                       approved_at as ApprovedAt, note, updated_at as UpdatedAt 
+                FROM quantengine.workspace_approval_v2"
+            );
+        }
+
+        public async Task<WorkspaceApproval?> GetApprovalAsync(string domain, string targetRef)
+        {
+            using var conn = _connectionFactory.CreateConnection();
+            return await conn.QueryFirstOrDefaultAsync<WorkspaceApproval>(@"
+                SELECT domain, target_ref as TargetRef, status, approved_by as ApprovedBy, 
+                       approved_at as ApprovedAt, note, updated_at as UpdatedAt 
+                FROM quantengine.workspace_approval_v2 
+                WHERE domain = @Domain AND target_ref = @TargetRef",
+                new { Domain = domain, TargetRef = targetRef }
+            );
+        }
+
+        public async Task<bool> UpsertApprovalAsync(WorkspaceApproval approval)
+        {
+            using var conn = _connectionFactory.CreateConnection();
+            var affected = await conn.ExecuteAsync(@"
+                INSERT INTO quantengine.workspace_approval_v2 (domain, target_ref, status, approved_by, approved_at, note, updated_at)
+                VALUES (@Domain, @TargetRef, @Status, @ApprovedBy, @ApprovedAt, @Note, @UpdatedAt)
+                ON CONFLICT (domain, target_ref) DO UPDATE SET
+                    status = EXCLUDED.status,
+                    approved_by = EXCLUDED.approved_by,
+                    approved_at = EXCLUDED.approved_at,
+                    note = EXCLUDED.note,
+                    updated_at = EXCLUDED.updated_at",
+                approval
+            );
+            return affected > 0;
+        }
+
+        // WorkspaceLock
+        public async Task<IEnumerable<WorkspaceLock>> GetLocksAsync()
+        {
+            using var conn = _connectionFactory.CreateConnection();
+            return await conn.QueryAsync<WorkspaceLock>(@"
+                SELECT domain, target_ref as TargetRef, locked_by as LockedBy, reason, locked_at as LockedAt 
+                FROM quantengine.workspace_lock"
+            );
+        }
+
+        public async Task<WorkspaceLock?> GetLockAsync(string domain, string targetRef)
+        {
+            using var conn = _connectionFactory.CreateConnection();
+            return await conn.QueryFirstOrDefaultAsync<WorkspaceLock>(@"
+                SELECT domain, target_ref as TargetRef, locked_by as LockedBy, reason, locked_at as LockedAt 
+                FROM quantengine.workspace_lock 
+                WHERE domain = @Domain AND target_ref = @TargetRef",
+                new { Domain = domain, TargetRef = targetRef }
+            );
+        }
+
+        public async Task<bool> AcquireLockAsync(WorkspaceLock @lock)
+        {
+            using var conn = _connectionFactory.CreateConnection();
+            var affected = await conn.ExecuteAsync(@"
+                INSERT INTO quantengine.workspace_lock (domain, target_ref, locked_by, reason, locked_at)
+                VALUES (@Domain, @TargetRef, @LockedBy, @Reason, @LockedAt)
+                ON CONFLICT (domain, target_ref) DO NOTHING",
+                @lock
+            );
+            return affected > 0;
+        }
+
+        public async Task<bool> ReleaseLockAsync(string domain, string targetRef)
+        {
+            using var conn = _connectionFactory.CreateConnection();
+            var affected = await conn.ExecuteAsync(
+                "DELETE FROM quantengine.workspace_lock WHERE domain = @Domain AND target_ref = @TargetRef",
+                new { Domain = domain, TargetRef = targetRef }
+            );
+            return affected > 0;
+        }
+    }
+}

src/dotnet/QuantEngine.Infrastructure/bin/Debug/net10.0/QuantEngine.Infrastructure.deps.json

@@ -0,0 +1,124 @@
+{
+  "runtimeTarget": {
+    "name": ".NETCoreApp,Version=v10.0",
+    "signature": ""
+  },
+  "compilationOptions": {},
+  "targets": {
+    ".NETCoreApp,Version=v10.0": {
+      "QuantEngine.Infrastructure/1.0.0": {
+        "dependencies": {
+          "Dapper": "2.1.79",
+          "Npgsql": "10.0.3",
+          "QuantEngine.Application": "1.0.0",
+          "QuantEngine.Core": "1.0.0"
+        },
+        "runtime": {
+          "QuantEngine.Infrastructure.dll": {}
+        }
+      },
+      "Dapper/2.1.79": {
+        "runtime": {
+          "lib/net10.0/Dapper.dll": {
+            "assemblyVersion": "2.0.0.0",
+            "fileVersion": "2.1.79.29349"
+          }
+        }
+      },
+      "Microsoft.Extensions.DependencyInjection.Abstractions/10.0.0": {
+        "runtime": {
+          "lib/net10.0/Microsoft.Extensions.DependencyInjection.Abstractions.dll": {
+            "assemblyVersion": "10.0.0.0",
+            "fileVersion": "10.0.25.52411"
+          }
+        }
+      },
+      "Microsoft.Extensions.Logging.Abstractions/10.0.0": {
+        "dependencies": {
+          "Microsoft.Extensions.DependencyInjection.Abstractions": "10.0.0"
+        },
+        "runtime": {
+          "lib/net10.0/Microsoft.Extensions.Logging.Abstractions.dll": {
+            "assemblyVersion": "10.0.0.0",
+            "fileVersion": "10.0.25.52411"
+          }
+        }
+      },
+      "Npgsql/10.0.3": {
+        "dependencies": {
+          "Microsoft.Extensions.Logging.Abstractions": "10.0.0"
+        },
+        "runtime": {
+          "lib/net10.0/Npgsql.dll": {
+            "assemblyVersion": "10.0.3.0",
+            "fileVersion": "10.0.3.0"
+          }
+        }
+      },
+      "QuantEngine.Application/1.0.0": {
+        "dependencies": {
+          "QuantEngine.Core": "1.0.0"
+        },
+        "runtime": {
+          "QuantEngine.Application.dll": {
+            "assemblyVersion": "1.0.0.0",
+            "fileVersion": "1.0.0.0"
+          }
+        }
+      },
+      "QuantEngine.Core/1.0.0": {
+        "runtime": {
+          "QuantEngine.Core.dll": {
+            "assemblyVersion": "1.0.0.0",
+            "fileVersion": "1.0.0.0"
+          }
+        }
+      }
+    }
+  },
+  "libraries": {
+    "QuantEngine.Infrastructure/1.0.0": {
+      "type": "project",
+      "serviceable": false,
+      "sha512": ""
+    },
+    "Dapper/2.1.79": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-8YijbzgTfmqmQOnVNorYM6K++pxqnW3nJ4aC1sRHzxUA2CcuoJ9gsTem3kgBnPRMc38zZHl4Esb6hAezXIEEuw==",
+      "path": "dapper/2.1.79",
+      "hashPath": "dapper.2.1.79.nupkg.sha512"
+    },
+    "Microsoft.Extensions.DependencyInjection.Abstractions/10.0.0": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-L3AdmZ1WOK4XXT5YFPEwyt0ep6l8lGIPs7F5OOBZc77Zqeo01Of7XXICy47628sdVl0v/owxYJTe86DTgFwKCA==",
+      "path": "microsoft.extensions.dependencyinjection.abstractions/10.0.0",
+      "hashPath": "microsoft.extensions.dependencyinjection.abstractions.10.0.0.nupkg.sha512"
+    },
+    "Microsoft.Extensions.Logging.Abstractions/10.0.0": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-FU/IfjDfwaMuKr414SSQNTIti/69bHEMb+QKrskRb26oVqpx3lNFXMjs/RC9ZUuhBhcwDM2BwOgoMw+PZ+beqQ==",
+      "path": "microsoft.extensions.logging.abstractions/10.0.0",
+      "hashPath": "microsoft.extensions.logging.abstractions.10.0.0.nupkg.sha512"
+    },
+    "Npgsql/10.0.3": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-7nb5YzXuvWWJxB0J8DiyL3we+X4FOctZrt0fIBnucOIaIevFEEwGQVZKtiu9olXdlNAK1eNgqSral6r/jlhI4w==",
+      "path": "npgsql/10.0.3",
+      "hashPath": "npgsql.10.0.3.nupkg.sha512"
+    },
+    "QuantEngine.Application/1.0.0": {
+      "type": "project",
+      "serviceable": false,
+      "sha512": ""
+    },
+    "QuantEngine.Core/1.0.0": {
+      "type": "project",
+      "serviceable": false,
+      "sha512": ""
+    }
+  }
+}

src/dotnet/QuantEngine.Infrastructure/obj/Debug/net10.0/.NETCoreApp,Version=v10.0.AssemblyAttributes.cs

@@ -0,0 +1,4 @@
+// <autogenerated />
+using System;
+using System.Reflection;
+[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETCoreApp,Version=v10.0", FrameworkDisplayName = ".NET 10.0")]