feat: 回忆录证据血缘与内部评测可追溯，顺带对齐本地评测台与 CI

数据库与模型：新增多版迁移（章节证据快照、对话血缘、记忆事实/时间线 lineage 等），把「成稿 ↔ 对话/记忆」的溯源信息落到表结构里。
业务链路：会话与 WS、回忆录/故事流水线、记忆写入与 enrichment 等跟着接上线索与快照；新增章节证据快照与评测侧 EvalTraceService 等模块，方便组评审用的证据包。
内部评测：自动化 run 与手工 memoir 评审共用可追溯证据；rubric/ judge 相关脚本与文档有配套调整。
app-eval-web：Memoir/实验详情里能展开看证据摘要与 evidence_trace（含对话轮次 id）；Vite 代理与 development.sh 注入的 API 端口与当前默认内部评测端口一致，避免改端口后页面连错服务。
工程杂项：GitHub Actions / 仓库说明有更新；各适配器与支付/配额/plan 等多处为小改动或跟随主改动的收尾；新增/扩充了?

api/app/features/evaluation/repo.py

@@ -6,6 +6,7 @@ import uuid
 from typing import Any
 
 from sqlalchemy import select
+from sqlalchemy.dialects.postgresql import insert as pg_insert
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.features.evaluation.models import (
@@ -270,8 +271,10 @@ async def add_turn(
     judge_scores_json: dict[str, Any] | None,
     judge_rationale: str | None,
 ) -> EvalRunTurn:
-    row = EvalRunTurn(
-        id=_id(),
+    """插入或更新同 (run_id, turn_index) 的轮次，避免 Celery 重试时 UniqueViolation。"""
+    tid = _id()
+    ins = pg_insert(EvalRunTurn).values(
+        id=tid,
         run_id=run_id,
         turn_index=turn_index,
         user_utterance=user_utterance,
@@ -280,8 +283,27 @@ async def add_turn(
         judge_scores_json=judge_scores_json,
         judge_rationale=judge_rationale,
     )
-    db.add(row)
+    stmt = ins.on_conflict_do_update(
+        constraint="uq_eval_run_turn_index",
+        set_={
+            "user_utterance": ins.excluded.user_utterance,
+            "assistant_reply": ins.excluded.assistant_reply,
+            "duration_ms": ins.excluded.duration_ms,
+            "judge_scores_json": ins.excluded.judge_scores_json,
+            "judge_rationale": ins.excluded.judge_rationale,
+        },
+    )
+    await db.execute(stmt)
     await db.flush()
+    res = await db.execute(
+        select(EvalRunTurn)
+        .where(
+            EvalRunTurn.run_id == run_id,
+            EvalRunTurn.turn_index == turn_index,
+        )
+        .limit(1)
+    )
+    row = res.scalar_one()
     return row