feat(api)!: memory single chain — async MemoryService, strict eval closure

Route all memory ingest/retrieve/enrichment/compaction through async MemoryService.
Remove legacy sync memory implementations (ingest/retrieve/compaction); Celery and
memoir Phase2 call asyncio.run into MemoryService-backed helpers.

Memoir Phase1 batch ingest uses MemoryService.ingest_transcripts_batch; drop chapters.
evidence_bundle_json mirror (Alembic 0015). Evaluation uses snapshot/link-only bundles;
raise EvidenceClosureMissing instead of partial/fallback lineage tiers.

Split memoir state into NarrativeCoverageState and InterviewControlState; delete the
_interview_meta_store adapter layer. Remove rolling-query and recent-fact fallback
settings from config and evidence assembly.

Update judges, docs, tests, and PlaygroundPage alignment.

Made-with: Cursor

api/app/features/memory/evidence_format.py

@@ -175,7 +175,7 @@ def format_evidence_chunks_for_chat_prompt(evidence: dict) -> str:
 
 
 def format_evidence_chunks_for_prompt(evidence: dict) -> str:
-    """将 retrieve_evidence / retrieve_evidence_sync 结果格式化为简短文本，供叙事与访谈 prompt 使用。
+    """将 MemoryService.retrieve 结果格式化为简短文本，供叙事与访谈 prompt 使用。
 
     包含 chunks、摘要（若有）、confirmed facts、timeline、故事摘要（若有）。
     """