ГЛОБАЛЬНЫЙ РЕФАКТОРИНГ АРХИТЕКТУРЫ - Этап 4.5: добавлен аудит контракта Stage 4 в debug/log и закрыт расширенный quality-loop

docs/TECH/1CLLMARCH-FACT.md

@@ -2679,7 +2679,37 @@ Implemented in current pass (Stage 4.3 contract consistency hardening, 2026-04-1
    - focused Stage 4 contract pack passed: `4 files / 14 tests` (`assistantStage4AnswerContractShape`, `assistantBoundaryFallbackReply`, `assistantSoftPolicyReply`, `assistantAnswerPolicyV11`);
    - `npm --prefix llm_normalizer/backend run build` passed.
 
-Status: In progress (Stage 4.1-4.3 completed; continue with quality loop on real runs/manual comments)
+Implemented in current pass (Stage 4.4 quality-loop verification on real/manual scenarios, 2026-04-12):
+1. Ran expanded regression gate aligned with Stage 3 exit + Stage 4 contract checks:
+   - `addressQueryRuntimeM23`
+   - `assistantWave17RunRegression20260411`
+   - `assistantWave18ManualCommentsRegression`
+   - `assistantLivingRouter`
+   - `assistantLivingChatMode`
+   - `assistantSoftPolicyReply`
+   - `assistantBoundaryFallbackReply`
+   - `assistantAnswerPolicyV11`
+   - `assistantSemanticExtractionContract`
+   - `assistantStage4AnswerContractShape`
+2. Validation snapshot:
+   - expanded quality-loop pack passed: `10 files / 359 tests`;
+   - `npm --prefix llm_normalizer/backend run build` passed.
+
+Implemented in current pass (Stage 4.5 contract observability in debug/log, 2026-04-12):
+1. Added Stage 4 answer-contract audit module:
+   - `assistantStage4AnswerContractAudit.ts`
+   - computes presence/missing of required Stage 4 blocks and detects legacy section leakage.
+2. Integrated audit into deep-lane observability artifacts:
+   - `debug.answer_contract_stage4_v1`
+   - processed log details `answer_contract_stage4_v1`
+3. Added focused unit coverage:
+   - `assistantDebugPayloadAssembler.test.ts` (positive and non-Stage4 legacy case)
+   - `assistantMessageLogAssembler.test.ts`
+4. Validation snapshot:
+   - focused assembler pack passed: `2 files / 5 tests`;
+   - `npm --prefix llm_normalizer/backend run build` passed.
+
+Status: In progress (Stage 4.1-4.5 completed; continue with focused wave/manual-comment quality backlog)
 
 ## Stage 5 (P3): Quality Loop Driven By GUI Markup