refactor: v2.2.195-201 — slashRouter god-file 해체 (–95%) + 인프라 5개 추출

아키텍처 감사 결과 HIGH 2건 + MED 2건 + LOW 1건 — 7 라운드 정리 시리즈.
기능 변경 없음, 순수 구조 정리.

**slashRouter.ts: 4,174 → 201줄 (–3,973, –95%)**
**agent.ts: 1,617 → 1,551줄 (–66, –4%)**

v2.2.195: eventSourcedStore + SystemPromptBlock registry
  - createEventStore<E>(opts) — 4 store (customers/hire/runway/feedback) I/O 240줄 중복 제거
  - _turnCtx 5 named string field → 1 Map<string, string> (새 verification block 추가 25곳→1곳)
  - buildAstraModeSystemPrompt: 5 ternary gate + 5 위치 → 1 for-loop join

v2.2.196: trackers cluster split
  - src/features/teamops/handlers/_shared.ts (fmtKrw/parseAmount/daysUntil/parseTaskOwner/stageEmoji/STAGE_ORDER/TERMINAL_STAGES)
  - src/features/teamops/handlers/trackers.ts (runway/customers/hire)
  - src/features/teamops/handlers/index.ts (barrel)
  - extension.ts 에 side-effect import (순환 import 회피)

v2.2.197: mtimeFileCache + PostAnswerHook registry
  - src/lib/mtimeFileCache.ts — createMtimeFileCache<T>(name, parse) (terminologyBlock + termValidator 2-cache invariant 자동화)
  - src/agent/postAnswerHooks/{types,index}.ts — Devil/SelfCheck/TermValidator 3 _maybeX method → 1 runPostAnswerHooks(ctx) loop
  - agent.ts –66줄

v2.2.198: dashboards cluster split
  - src/features/teamops/handlers/dashboards.ts (morning/evening/cohort/weekly)

v2.2.199: coordination + communication clusters split
  - src/features/teamops/handlers/coordination.ts (task/decisions/onesie/blocked/standup)
  - src/features/teamops/handlers/communication.ts (draft/feedback)
  - callLmSynthesis export 노출 (communication 이 사용)
  - 옛 parseTaskOwner local 정의 삭제 (_shared.ts 사용)

v2.2.200: system cluster split
  - src/features/system/handlers.ts (memory/glossary/help)

v2.2.201: datacollect cluster split + LLM 인프라 추출
  - src/features/datacollect/handlers.ts (research/benchmark/youtube/blog/wikify/meet)
  - src/features/datacollect/llm.ts (callLmSynthesis + repairKoreanGlitches + bridgeErrorRemedy)
  - slashRouter import 4개로 축소: vscode/logInfo/getBridgeBaseUrl/bridgeErrorRemedy

**최종 slashRouter (201줄):**
- REGISTRY Map + registerSlashCommand/listSlashCommands/isSlashCommand
- handleSlashCommand (dispatcher + 에러 처리)
- Webview interface + chunk helper
- getRecentSlashCommands ring buffer (actionability scoring 용)

**미래 부담 감소 metrics:**
- 새 슬래시 명령: god-file 끝에 함수 + register → 1 파일 + 1 register call
- 새 verification block: 5곳 편집 → 1 set call
- 새 event store: 60줄 boilerplate → createEventStore 한 줄
- 새 post-answer hook: 3 step → 1 push
- 새 mtime cache: Map + invariant 관리 → createMtimeFileCache 한 줄

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/retrieval/terminologyBlock.ts

@@ -16,14 +16,14 @@
  * 캐시: 파일 mtime 기반 — 매 turn 디스크 read 안 함.
  */
 
-import * as fs from 'fs';
 import * as path from 'path';
 import * as vscode from 'vscode';
+import { createMtimeFileCache } from '../lib/mtimeFileCache';
 
 const DEFAULT_GLOSSARY_REL_PATH = '.astra/glossary.md';
 
-/** mtime-keyed cache — 사용자가 편집할 때만 다시 읽음. */
-const _cache = new Map<string, { mtime: number; content: string }>();
+/** Raw 본문 캐시 — mtime 기반, 파일 편집 시 자동 재read. */
+const _rawCache = createMtimeFileCache<string>('terminology-raw', (raw) => raw.trim());
 
 export function getGlossaryFilePath(relPath: string = DEFAULT_GLOSSARY_REL_PATH): string | null {
     const folders = vscode.workspace.workspaceFolders;
@@ -34,21 +34,11 @@ export function getGlossaryFilePath(relPath: string = DEFAULT_GLOSSARY_REL_PATH)
 function readGlossary(relPath: string): string {
     const fp = getGlossaryFilePath(relPath);
     if (!fp) return '';
-    try {
-        if (!fs.existsSync(fp)) return '';
-        const st = fs.statSync(fp);
-        const cached = _cache.get(fp);
-        if (cached && cached.mtime === st.mtimeMs) return cached.content;
-        const content = fs.readFileSync(fp, 'utf-8').trim();
-        _cache.set(fp, { mtime: st.mtimeMs, content });
-        return content;
-    } catch {
-        return '';
-    }
+    return _rawCache.read(fp) ?? '';
 }
 
 export function clearGlossaryCache(): void {
-    _cache.clear();
+    _rawCache.clear();
 }
 
 export interface TerminologyBlockOptions {