ГЛОБАЛЬНЫЙ РЕФАКТОРИНГ АРХИТЕКТУРЫ - Рефакторинг этапов 2.12.23: декомпозиция deep-turn пайплайна ассистента в runtime-адаптеры

llm_normalizer/backend/src/services/assistantInvestigationStateRuntimeAdapter.ts

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+import type { AssistantReplyType, AssistantRequirement, RequirementCoverageReport, UnifiedRetrievalResult } from "../types/assistant";
+import type { RouteHintSummary } from "../types/normalizer";
+import type { InvestigationStateWithProblemUnits } from "../types/stage2ProblemUnits";
+import { updateInvestigationState } from "./investigationState";
+
+export interface BuildAssistantInvestigationStateSnapshotInput {
+  featureEnabled: boolean;
+  previousState: InvestigationStateWithProblemUnits | null | undefined;
+  timestamp: string;
+  questionId: string;
+  userMessage: string;
+  routeSummary: RouteHintSummary | null;
+  requirements: AssistantRequirement[];
+  coverageReport: RequirementCoverageReport;
+  retrievalResults: UnifiedRetrievalResult[];
+  replyType: AssistantReplyType;
+  followupApplied: boolean;
+}
+
+export function buildAssistantInvestigationStateSnapshot(
+  input: BuildAssistantInvestigationStateSnapshotInput
+): InvestigationStateWithProblemUnits | null {
+  if (!input.featureEnabled || !input.previousState) {
+    return null;
+  }
+  return updateInvestigationState({
+    previous: input.previousState,
+    timestamp: input.timestamp,
+    questionId: input.questionId,
+    userMessage: input.userMessage,
+    routeSummary: input.routeSummary,
+    requirements: input.requirements,
+    coverageReport: input.coverageReport,
+    retrievalResults: input.retrievalResults,
+    replyType: input.replyType,
+    followupApplied: input.followupApplied
+  });
+}
+
+export interface PersistAssistantInvestigationStateSnapshotInput {
+  featureEnabled: boolean;
+  sessionId: string;
+  snapshot: InvestigationStateWithProblemUnits | null;
+  persist: (sessionId: string, snapshot: InvestigationStateWithProblemUnits) => void;
+}
+
+export function persistAssistantInvestigationStateSnapshot(
+  input: PersistAssistantInvestigationStateSnapshotInput
+): boolean {
+  if (!input.featureEnabled || !input.snapshot) {
+    return false;
+  }
+  input.persist(input.sessionId, input.snapshot);
+  return true;
+}