API 계약 CI 추가

docs/dev_dashboard.html

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           <article class="scard" data-status="doing" data-cat="리팩터·정리" data-owner="0">
             <button class="scard-head" aria-expanded="false"><span class="chip c-done">REFACTOR 2 3차 DONE</span><span class="scard-mid"><span class="scard-title">백엔드 Pydantic ↔ 프론트 <code>lib/api.ts</code> 계약 SSOT화</span><span class="scard-sum">OpenAPI→<code>api.gen.ts</code> 생성 + stale 체크 게이트. 주요 수기 DTO를 생성 타입 alias로 축소.</span></span><span class="caret" aria-hidden="true"></span></button>
-            <div class="scard-body"><div class="kv"><b>현재</b><p><code>apps/api/scripts/export-openapi.py</code>와 <code>apps/web/scripts/generate-api-types.mjs</code>로 FastAPI OpenAPI를 <code>apps/web/src/lib/api.gen.ts</code>에 생성한다. <code>npm run check:api-types</code>가 재생성 누락을 잡는다. <code>MeResponse</code>, <code>AuthConfigResponse</code>, <code>ConsentResponse</code>, <code>PersonaSummary</code>, <code>PersonaReviewSummary</code>, admin/user/engine DTO, review leaf DTO, <code>CrisisResourceResponse</code>, teacher safety/growth leaf DTO에 이어 이번 패스에서 <code>LearnerSessionsResponse</code>, <code>SessionReviewResponse</code>, worksheet aggregate, <code>TeacherDashboardResponse</code>, <code>TeacherSessionSummary</code>, <code>TeacherLearnerGrowth</code>도 <code>ApiSchema&lt;...&gt;</code> alias로 전환했다. generated optional/default 차이는 화면 form state, notification default helper, 배열 렌더링 fallback으로 흡수한다.</p></div><div class="kv"><b>검증</b><p><code>npm run check:api-types</code>, <code>npm run typecheck</code>, <code>npm run build</code> passed. 영향 범위 E2E: <code>learner.spec.ts</code> + <code>session-review.spec.ts</code> + <code>teacher.spec.ts</code> + <code>layout-visual-gate.spec.ts</code> 32 passed.</p></div><div class="kv k-warn"><b>잔여</b><p>실제 CI 워크플로에 <code>npm run check:api-types</code>를 연결하는 작업은 남아 있다. <code>SessionDetail</code>/<code>SessionStart</code> 계열은 backend stage enum/guard를 먼저 정리한 뒤 생성 타입 alias로 전환한다.</p></div></div>
+            <div class="scard-body"><div class="kv"><b>현재</b><p><code>apps/api/scripts/export-openapi.py</code>와 <code>apps/web/scripts/generate-api-types.mjs</code>로 FastAPI OpenAPI를 <code>apps/web/src/lib/api.gen.ts</code>에 생성한다. <code>npm run check:api-types</code>가 재생성 누락을 잡는다. <code>MeResponse</code>, <code>AuthConfigResponse</code>, <code>ConsentResponse</code>, <code>PersonaSummary</code>, <code>PersonaReviewSummary</code>, admin/user/engine DTO, review leaf DTO, <code>CrisisResourceResponse</code>, teacher safety/growth leaf DTO에 이어 이번 패스에서 <code>LearnerSessionsResponse</code>, <code>SessionReviewResponse</code>, worksheet aggregate, <code>TeacherDashboardResponse</code>, <code>TeacherSessionSummary</code>, <code>TeacherLearnerGrowth</code>도 <code>ApiSchema&lt;...&gt;</code> alias로 전환했다. generated optional/default 차이는 화면 form state, notification default helper, 배열 렌더링 fallback으로 흡수한다. <code>.github/workflows/api-contract.yml</code>은 PR/master push에서 같은 stale check를 실행해 OpenAPI type drift를 CI에서 막는다.</p></div><div class="kv"><b>검증</b><p><code>npm run check:api-types</code>, <code>npm run typecheck</code>, <code>npm run build</code> passed. 영향 범위 E2E: <code>learner.spec.ts</code> + <code>session-review.spec.ts</code> + <code>teacher.spec.ts</code> + <code>layout-visual-gate.spec.ts</code> 32 passed.</p></div><div class="kv k-warn"><b>잔여</b><p><code>SessionDetail</code>/<code>SessionStart</code> 계열은 backend stage enum/guard를 먼저 정리한 뒤 생성 타입 alias로 전환한다.</p></div></div>
           </article>
           <article class="scard" data-status="done" data-cat="리팩터·정리" data-owner="0">
             <button class="scard-head" aria-expanded="false"><span class="chip c-done">REFACTOR 3 일부</span><span class="scard-mid"><span class="scard-title">죽은 확장점/계약 정리 — LogHook·tier 제거 적용</span><span class="scard-sum">caller 0 타입·분기·export 제거. 잔여는 패치 문서에 스테이징. 전체 API 119.</span></span><span class="caret" aria-hidden="true"></span></button>
@@ -783,7 +783,7 @@
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                   <tr><td>Web typecheck</td><td><code>npm run typecheck</code></td><td>Passed</td></tr>
                   <tr><td>API typegen SSOT</td><td><code>npm run check:api-types</code></td><td>Passed; FastAPI OpenAPI → <code>src/lib/api.gen.ts</code> stale check</td></tr>
-                  <tr><td>Contract SSOT aggregate DTO</td><td><code>npm run typecheck</code> / <code>npm run build</code> / <code>learner + session-review + teacher + layout gate</code></td><td>Passed; learner sessions, session review/worksheet, teacher dashboard aggregates now use generated <code>ApiSchema</code> aliases with UI array fallback. Focused E2E 32 passed.</td></tr>
+                  <tr><td>Contract SSOT aggregate DTO</td><td><code>npm run typecheck</code> / <code>npm run build</code> / <code>learner + session-review + teacher + layout gate</code></td><td>Passed; learner sessions, session review/worksheet, teacher dashboard aggregates now use generated <code>ApiSchema</code> aliases with UI array fallback. Focused E2E 32 passed. <code>.github/workflows/api-contract.yml</code> now runs <code>npm run check:api-types</code> on API/Web contract changes.</td></tr>
                   <tr><td>Backend pytest</td><td><code>python -m pytest app/ -q</code></td><td>130 passed</td></tr>
                   <tr><td>X2 evaluator model routing</td><td><code>python -m pytest app/test_evaluator_model_routing.py app/test_runtime_policy.py -q</code></td><td>23 passed; fast/deep evaluator model override and blank-default routing covered</td></tr>
                   <tr><td>C1 case worksheet</td><td><code>python -m pytest app/test_session_turn_persistence.py -q</code> / <code>session-review.spec.ts</code></td><td>14 passed; session review exposes transcript-grounded <code>caseWorksheet</code> and UI evidence jump</td></tr>