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/app/features/memory/service.py

@@ -289,10 +289,8 @@ def ingest_transcript_sync(
         )
         embedding_provider = None
 
-    # 向量写入与 enrichment 任一失败时，此前若在**同一事务内**已开始失败的 SQL，
-    # 会导致 session 进入「必须 rollback」状态，进而让后续 commit 抛出
-    # PendingRollbackError，污染 Celery 里共用的 `db`。
-    # 用 SAVEPOINT 包一层：失败仅回滚本段，source/chunks 主体仍可由外层提交。
+    # 向量写入在 SAVEPOINT 内；失败仅回滚本段，source/chunks 主体仍可由外层提交。
+    # enrichment 已迁移到独立异步任务 (memory_enrichment_tasks.enrich_memory_source)。
     try:
         with session.begin_nested():
             if chunk_records and embedding_provider is not None:
@@ -302,25 +300,29 @@ def ingest_transcript_sync(
                     if emb:
                         vectors_written += 1
                         update_chunk_embedding_sync(session, chunk_id, emb)
-            if settings.memory_enrichment_enabled:
-                from app.features.memory.enrichment import (
-                    enrich_memory_after_ingest_sync,
-                )
-
-                enrich_memory_after_ingest_sync(
-                    session, user_id, source.id, llm=None
-                )
-                enrichment_ok = True
     except Exception as e:
         logger.warning(
-            "memory embedding/enrichment 跳过(sync): {} exc_type={}",
+            "memory embedding 跳过(sync): {} exc_type={}",
             e,
             type(e).__name__,
         )
-        if settings.memory_enrichment_enabled:
-            enrichment_ok = False
 
     session.commit()
+
+    if settings.memory_enrichment_enabled:
+        try:
+            from app.tasks.memory_enrichment_tasks import enrich_memory_source
+
+            enrich_memory_source.delay(user_id, source.id)
+            enrichment_ok = True
+        except Exception as e:
+            enrichment_ok = False
+            logger.warning(
+                "memory enrichment 任务派发失败: {} exc_type={}",
+                e,
+                type(e).__name__,
+            )
+
     logger.info(
         "event=memory_ingest_done user_id={} conversation_id={} source_id={} "
         "chunks={} vectors_written={} embedding_available={} enrichment_enabled={} enrichment_ok={} sync=1",