refactor(eval+memoir)：精简内部评测路由与服务，composite/对话摘要与 judge 能力补强

- 访谈：新增 interview_state_hints，联动 orchestrator 与提示词
- 回忆录：story_pipeline_sync/state/memory/post_commit 与 Celery 任务调整
- 基建：开发用 celery broker、compose/development 脚本、依赖注入
- eval-web：移除数据集/实验/版本等页面与流式轮询，突出 Playground
- 文档与单测同步

api/tests/evaluation/test_internal_router_auth.py

@@ -4,11 +4,12 @@ import pytest
 from httpx import ASGITransport, AsyncClient
 
 from app.features.evaluation.internal_auth import get_internal_eval_principal
-from app.features.evaluation.router import router
 
 
 @pytest.mark.asyncio
-async def test_internal_eval_list_sets_requires_config(monkeypatch: pytest.MonkeyPatch):
+async def test_internal_eval_list_fixtures_requires_config(
+    monkeypatch: pytest.MonkeyPatch,
+):
     from fastapi import FastAPI
 
     monkeypatch.setattr(
@@ -16,16 +17,20 @@ async def test_internal_eval_list_sets_requires_config(monkeypatch: pytest.Monke
         "",
         raising=False,
     )
+    from app.features.evaluation.router import router
+
     app = FastAPI()
     app.include_router(router, prefix="/internal/api/evaluation")
     transport = ASGITransport(app=app)
     async with AsyncClient(transport=transport, base_url="http://t") as client:
-        r = await client.get("/internal/api/evaluation/regression-sets")
+        r = await client.get("/internal/api/evaluation/fixtures/user-exports")
     assert r.status_code == 503
 
 
 @pytest.mark.asyncio
-async def test_internal_eval_with_override_lists_empty(monkeypatch: pytest.MonkeyPatch):
+async def test_internal_eval_with_override_lists_fixtures(
+    monkeypatch: pytest.MonkeyPatch,
+):
     from fastapi import FastAPI
 
     monkeypatch.setattr(
@@ -33,6 +38,17 @@ async def test_internal_eval_with_override_lists_empty(monkeypatch: pytest.Monke
         "secret",
         raising=False,
     )
+    def _empty_fixtures() -> list[str]:
+        return []
+
+    monkeypatch.setattr(
+        "app.features.evaluation.admin_service.list_user_export_md_filenames",
+        _empty_fixtures,
+        raising=False,
+    )
+
+    from app.features.evaluation.router import router
+
     app = FastAPI()
     app.include_router(router, prefix="/internal/api/evaluation")
 
@@ -42,24 +58,12 @@ async def test_internal_eval_with_override_lists_empty(monkeypatch: pytest.Monke
         return InternalEvalPrincipal()
 
     app.dependency_overrides[get_internal_eval_principal] = _override_auth
-    from app.core.db import get_async_db
-    from unittest.mock import AsyncMock, MagicMock
-
-    mock_session = AsyncMock()
-    mock_result = MagicMock()
-    mock_result.scalars.return_value.unique.return_value.all.return_value = []
-    mock_session.execute = AsyncMock(return_value=mock_result)
-
-    async def _db():
-        yield mock_session
-
-    app.dependency_overrides[get_async_db] = _db
 
     transport = ASGITransport(app=app)
     async with AsyncClient(transport=transport, base_url="http://t") as client:
         r = await client.get(
-            "/internal/api/evaluation/regression-sets",
+            "/internal/api/evaluation/fixtures/user-exports",
             headers={"X-Internal-Eval-Key": "secret"},
         )
     assert r.status_code == 200
-    assert r.json() == []
+    assert r.json() == {"items": []}