세션 평가·라이브코치·교수자 분석 라운드 마감 + 문서 정리 + 코드품질 리팩터

- 누적 작업트리 커밋: 회기 평가 복구·durable 저장, 라이브 코치 이력/근거, 교수자 학생분석, 음성 비언어 메타, PII 마스킹, 운영 티켓/헬스 등
- 문서: 완료 기록 docs/archive/ 냉동 보관, docs/ 단일 인덱스(docs/README.md)+통합 TODO(docs/TODO.md)로 정리
- 리팩터(행위 보존): Stage enum SSOT(taxonomy 소유·state_machine re-export), store recent/masked_turns 중복 제거, speaker_ko_label 단일 헬퍼, _list_sessions N+1 제거(state/turns 배치 + 턴평가 하이드레이션 배치)
- 검증: 백엔드 pytest 352 passed, _list_sessions E2E chromium-single-run 2 passed

apps/web/src/App.tsx

@@ -17,7 +17,7 @@
 
 import type { ReactNode } from "react";
 import { BrowserRouter, Navigate, Route, Routes, useLocation } from "react-router-dom";
-import { AuthProvider, canAccessRole, useAuth, roleHomePath, type Role } from "./lib/auth";
+import { AuthProvider, canAccessRole, useAuth, roleHomePath, type AuthUser, type Role } from "./lib/auth";
 
 import Login from "./pages/Login";
 import Onboarding from "./pages/Onboarding";
@@ -74,6 +74,17 @@ function RequireAuth({
   return <>{children}</>;
 }
 
+function isAdminWorkspacePath(path: string) {
+  return path === "/admin" || path.startsWith("/admin/");
+}
+
+function approvedHomePath(user: AuthUser) {
+  if (user.onboardingCompletedAt == null) {
+    return canAccessRole(user, "admin") ? "/admin" : "/onboarding";
+  }
+  return roleHomePath(user.role);
+}
+
 function OnboardingGate({ children }: { children: ReactNode }) {
   const { user, loading } = useAuth();
   const location = useLocation();
@@ -82,6 +93,9 @@ function OnboardingGate({ children }: { children: ReactNode }) {
   if (loading) return <BootScreen />;
   if (path === "/pending") return <>{children}</>;
   if (user && user.onboardingCompletedAt == null && path !== "/onboarding") {
+    if (isAdminWorkspacePath(path) && canAccessRole(user, "admin")) {
+      return <>{children}</>;
+    }
     return <Navigate to="/onboarding" replace state={{ from: path }} />;
   }
   if (user && user.onboardingCompletedAt != null && (path === "/login" || path === "/onboarding")) {
@@ -100,12 +114,7 @@ function PendingApprovalGate({ children }: { children: ReactNode }) {
     return <Navigate to="/pending" replace state={{ from: path }} />;
   }
   if (user && user.accountStatus === "approved" && path === "/pending") {
-    return (
-      <Navigate
-        to={user.onboardingCompletedAt == null ? "/onboarding" : roleHomePath(user.role)}
-        replace
-      />
-    );
+    return <Navigate to={approvedHomePath(user)} replace />;
   }
   return <>{children}</>;
 }
@@ -118,7 +127,7 @@ function RootRedirect() {
     return <Navigate to="/pending" replace />;
   }
   if (user && user.onboardingCompletedAt == null) {
-    return <Navigate to="/onboarding" replace />;
+    return <Navigate to={approvedHomePath(user)} replace />;
   }
   return <Navigate to={user ? roleHomePath(user.role) : "/login"} replace />;
 }