feat(eval): memoir A/B chapter judging and eval-web parity with dialogue

- Judge baseline excerpt and library chapter separately; build_memoir_compare_summary for gate, nine-dim and leaf deltas.

- Memoir SSE chapter payload: baseline_judge, compare_summary, baseline_judge_error.

- MemoirJudgeOutput: loose score coercion and post-validate clamp; memoir judge prompt caps from settings.

- app-eval-web: two-column MemoirScoreCard layout, MemoirCompareSummary, chapter blocks and CSS.

- Add memoir_compare_summary, log_events, celery_log_context, memoir_pipeline_progress; tests and migration 0014.

- Misc: memory/evidence and enrichment paths, task/orchestrator updates, internal-eval docs, env examples.

api/tests/test_memoir_pipeline_optimization.py

@@ -144,7 +144,7 @@ def test_ingest_transcript_sync_no_longer_calls_enrichment_inline() -> None:
 
     source = inspect.getsource(ingest_transcript_sync)
     assert "enrich_memory_after_ingest_sync" not in source
-    assert "enrich_memory_source" in source
+    assert "schedule_memory_enrichment" in source
 
 
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