feat(evaluation): memoir readiness, judge/replay updates, eval web playground

Add memoir_readiness_service and router tests; extend judge schemas/services, replay_service, and conversation rubric; align story route agent, payload, prompts, and story_pipeline_sync; update agent logging, config, and DI. Document internal-eval; add replayDraft util and PlaygroundPage changes in app-eval-web.

api/app/features/evaluation/memoir_readiness_service.py

@@ -0,0 +1,57 @@
+"""评测台：查询用户 segment 是否已完成回忆录 Phase1（topic_category 已写入）。"""
+
+from __future__ import annotations
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.features.conversation.models import Conversation, Segment
+from app.features.evaluation.errors import (
+    EvaluationBadRequestError,
+    EvaluationNotFoundError,
+)
+from app.features.evaluation.schemas import MemoirPhase1ReadyOut
+
+
+class MemoirReadinessService:
+    def __init__(self, db: AsyncSession) -> None:
+        self._db = db
+
+    async def memoir_phase1_ready_for_segments(
+        self,
+        *,
+        conversation_id: str,
+        segment_ids: list[str],
+    ) -> MemoirPhase1ReadyOut:
+        cid = (conversation_id or "").strip()
+        if not cid:
+            raise EvaluationBadRequestError("conversation_id is required")
+        ids = [s.strip() for s in segment_ids if (s or "").strip()]
+        if not ids:
+            raise EvaluationBadRequestError("segment_ids is required")
+
+        conv = await self._db.get(Conversation, cid)
+        if not conv or conv.deleted_at is not None:
+            raise EvaluationNotFoundError("conversation not found")
+
+        stmt = select(Segment).where(
+            Segment.id.in_(ids),
+            Segment.conversation_id == cid,
+        )
+        result = await self._db.execute(stmt)
+        rows = list(result.scalars().all())
+        found_ids = {s.id for s in rows}
+        missing = [i for i in ids if i not in found_ids]
+        if missing:
+            raise EvaluationBadRequestError(
+                "segment not in conversation: " + ", ".join(missing[:5])
+                + ("…" if len(missing) > 5 else "")
+            )
+
+        pending = [s.id for s in rows if s.topic_category is None]
+        ready = len(pending) == 0
+        return MemoirPhase1ReadyOut(
+            ready=ready,
+            checked_segment_ids=ids,
+            pending_segment_ids=pending,
+        )