feat: V2-7 Admin 콘솔 리디자인 + 3단계 권한 + SaaS 전환 + 코드 정리

- Admin CRM: D3RO Console 스타일 전체 적용 (panelSx/tableSx/filterBtnSx)
- 3단계 권한: manager/admin/super_admin (DB + Edge Functions + Frontend)
- 랜딩 페이지: 1회 결제 → 월간/연간 구독 SaaS 모델 (10개 언어)
- SSE 스트리밍: VoiceConversation Premium LLM 라우팅 + fallback
- Supabase 클라이언트: packages/api-client 공통 추출 (browser+server)
- RPC 함수 타입: 9개 정의 (admin_usage_by_feature 등)
- callAdminApi 401 버그 수정 (getUser() 선행 토큰 갱신)

apps/admin/src/components/role-change-dialog.tsx

@@ -20,19 +20,21 @@ import { PhosphorText } from '@d3ro/ui/components/ds'
 import { d3roPalette, d3roFontMono } from '@d3ro/ui/theme'
 import { callAdminApi } from '@/lib/admin-api'
 
-type Role = 'user' | 'admin' | 'super_admin'
+type Role = 'user' | 'manager' | 'admin' | 'super_admin'
 
 interface RoleChangeDialogProps {
   open: boolean
   userId: string
   userName: string | null
   currentRole: Role
+  /** 현재 로그인한 admin의 role */
+  callerRole?: Role
   onClose: () => void
   onSuccess: () => void
 }
 
 export function RoleChangeDialog({
-  open, userId, userName, currentRole, onClose, onSuccess,
+  open, userId, userName, currentRole, callerRole = 'admin', onClose, onSuccess,
 }: RoleChangeDialogProps): React.ReactElement {
   const [newRole, setNewRole] = useState<Role>(currentRole)
   const [memo, setMemo] = useState('')
@@ -83,8 +85,9 @@ export function RoleChangeDialog({
             sx={{ fontFamily: d3roFontMono, color: d3roPalette.text.primary }}
           >
             <MenuItem value="user">user</MenuItem>
-            <MenuItem value="admin">admin</MenuItem>
-            <MenuItem value="super_admin">super_admin</MenuItem>
+            <MenuItem value="manager">manager</MenuItem>
+            {callerRole === 'super_admin' && <MenuItem value="admin">admin</MenuItem>}
+            {callerRole === 'super_admin' && <MenuItem value="super_admin">super_admin</MenuItem>}
           </Select>
         </FormControl>