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+# Phase V2-2: Supabase 인프라 — 사용자 설정 가이드
+
+> 이 문서는 사용자가 **로컬 밖에서 수행해야 하는 작업**만 안내합니다.
+> 로컬 코드 변경(SQL 마이그레이션, Edge Functions 스캐폴딩)은 이미 `server/supabase/`에 포함되어 있습니다.
+
+---
+
+## 1. Supabase 계정/프로젝트 생성
+
+1. https://supabase.com 접속 → `Sign in with GitHub` (권장)
+2. `New project` 클릭
+   - **Name**: `d3ro-voice`
+   - **Database Password**: 강력한 비밀번호 (1Password 등에 저장)
+   - **Region**: `ap-northeast-2` (Seoul) 권장
+   - **Pricing Plan**: Free (시작 후 Pro로 업그레이드 가능)
+3. 프로젝트 생성 완료(~2분) 후 대시보드 접속
+
+## 2. API 키 확인 (Settings → API)
+
+다음 4개 값을 메모:
+
+| 키 | 용도 | 노출 범위 |
+|---|---|---|
+| `Project URL` | `SUPABASE_URL` — 모든 클라이언트 | 공개 가능 |
+| `anon public` | `SUPABASE_ANON_KEY` — 클라이언트 읽기/쓰기 (RLS 보호) | 공개 가능 |
+| `service_role` | `SUPABASE_SERVICE_ROLE_KEY` — 서버 전용 (RLS 우회) | **절대 공개 금지** |
+| `Project Ref` | CLI 연동용 | 공개 가능 |
+
+## 3. Supabase CLI 설치
+
+### Windows
+```bash
+scoop install supabase
+# 또는
+winget install Supabase.CLI
+```
+
+### macOS
+```bash
+brew install supabase/tap/supabase
+```
+
+## 4. 로컬 프로젝트 연결
+
+```bash
+cd D:/workspace/voice
+
+# Supabase 계정 로그인 (브라우저 열림)
+supabase login
+
+# 원격 프로젝트와 연결 (Project Ref 필요)
+cd server/supabase
+supabase link --project-ref <YOUR_PROJECT_REF>
+```
+
+## 5. 마이그레이션 푸시
+
+```bash
+# server/supabase/migrations/* 를 원격에 적용
+supabase db push
+```
+
+실행 결과:
+- `20260409000001_initial_schema.sql` — 테이블/인덱스 생성
+- `20260409000002_rls_policies.sql` — RLS 정책
+- `20260409000003_auth_triggers.sql` — handle_new_user, moddatetime
+- `20260409000004_storage_buckets.sql` — storage 버킷 + 정책
+
+검증: Studio → Database → Tables에서 12개 테이블 확인
+
+## 6. OAuth Provider 등록
+
+### 6.1 Google OAuth
+
+1. https://console.cloud.google.com → 프로젝트 생성 (`d3ro-voice`)
+2. `APIs & Services` → `Credentials` → `Create Credentials` → `OAuth client ID`
+3. `Application type`: Web application
+4. `Authorized redirect URIs`:
+   - `https://<YOUR_PROJECT_REF>.supabase.co/auth/v1/callback`
+5. `Client ID`와 `Client Secret` 복사
+6. Supabase 대시보드 → Authentication → Providers → Google
+   - Enable 체크
+   - Client ID / Client Secret 입력 → Save
+
+### 6.2 GitHub OAuth
+
+1. GitHub → Settings → Developer settings → OAuth Apps → New OAuth App
+2. `Homepage URL`: `https://d3ro.dev`
+3. `Authorization callback URL`: `https://<YOUR_PROJECT_REF>.supabase.co/auth/v1/callback`
+4. `Client ID`, `Client Secret` 복사 → Supabase Authentication → Providers → GitHub
+
+### 6.3 Apple OAuth (선택, 나중에 가능)
+
+Apple Developer Program 계정 필요. iOS 출시 전에 등록.
+가이드: https://supabase.com/docs/guides/auth/social-login/auth-apple
+
+## 7. Edge Functions 배포
+
+```bash
+cd server/supabase
+
+# 시크릿 설정 (배포 전)
+supabase secrets set GOOGLE_CLOUD_STT_KEY=<google_api_key>
+supabase secrets set ANTHROPIC_API_KEY=<anthropic_api_key>
+
+# 함수 배포
+supabase functions deploy stt-proxy
+supabase functions deploy llm-proxy
+```
+
+배포 후 호출 URL:
+- `https://<YOUR_PROJECT_REF>.supabase.co/functions/v1/stt-proxy`
+- `https://<YOUR_PROJECT_REF>.supabase.co/functions/v1/llm-proxy`
+
+### 7.1 AI API 키 발급
+
+**Google Cloud STT**:
+1. Google Cloud Console → API & Services → Library → Speech-to-Text API → Enable
+2. Credentials → Create API Key (Speech-to-Text API로 제한 권장)
+3. 빌링 활성화 필요 ($300 free credit)
+
+**Anthropic API**:
+1. https://console.anthropic.com → API Keys → Create Key
+2. 최소 $5 credit 충전
+
+## 8. 환경변수 관리
+
+### 8.1 로컬 개발 (.env)
+
+루트에 `.env.local` 생성 (`.gitignore`되어 있음):
+
+```bash
+# Supabase
+VITE_SUPABASE_URL=https://<YOUR_PROJECT_REF>.supabase.co
+VITE_SUPABASE_ANON_KEY=<anon_public_key>
+
+# apps/web (Phase V2-3에서 사용)
+NEXT_PUBLIC_SUPABASE_URL=https://<YOUR_PROJECT_REF>.supabase.co
+NEXT_PUBLIC_SUPABASE_ANON_KEY=<anon_public_key>
+
+# Edge Functions 로컬 개발용 (server/supabase/.env)
+GOOGLE_CLOUD_STT_KEY=<google_api_key>
+ANTHROPIC_API_KEY=<anthropic_api_key>
+```
+
+### 8.2 프로덕션 (Supabase Dashboard)
+
+- Supabase 내부 시크릿: `supabase secrets set KEY=value`
+- Vercel/Netlify 등 호스팅: 각 플랫폼의 환경변수 설정 페이지 사용
+
+## 9. 검증 체크리스트
+
+- [ ] Studio에서 12개 테이블 확인 (profiles, teams, team_members, meetings, meeting_memos, meeting_documents, transcripts, history, dictionary, memo_tags, daily_usage, subscriptions)
+- [ ] Authentication → Users에서 첫 테스트 유저 로그인 가능
+- [ ] 테스트 유저 로그인 후 `profiles` 테이블에 자동 행 생성됨 (handle_new_user 트리거 동작)
+- [ ] `subscriptions` 테이블에도 `tier=free` 행 자동 생성
+- [ ] Storage → 3개 버킷 (audio/exports/avatars) 확인
+- [ ] Edge Functions → stt-proxy, llm-proxy 배포 상태 확인
+- [ ] Edge Functions 호출 테스트 (curl 또는 Studio의 Invoke):
+  ```bash
+  curl -X POST https://<YOUR_PROJECT_REF>.supabase.co/functions/v1/llm-proxy \
+    -H "Authorization: Bearer <user_jwt>" \
+    -H "Content-Type: application/json" \
+    -d '{"messages":[{"role":"user","content":"hi"}]}'
+  ```
+  → `"[llm-proxy placeholder ...]"` 응답이 오면 인증/쿼터 체인 정상
+
+## 10. 다음 페이즈와의 연결
+
+V2-2가 완료되면:
+- **V2-3 (Web MVP)**: `NEXT_PUBLIC_SUPABASE_*` 환경변수로 Next.js 앱이 백엔드 연결
+- **V2-4 (데스크톱 동기화)**: `VITE_SUPABASE_*`로 Electron 앱이 백엔드 연결
+- Edge Functions의 placeholder를 실제 Google STT / Anthropic API 호출로 교체
+
+## 11. 문제 해결
+
+**`supabase db push` 시 FK 오류**:
+→ 기존 스키마가 있으면 `supabase db reset` (주의: 데이터 삭제) 또는 수동 drop 후 재시도
+
+**RLS로 인해 INSERT 차단**:
+→ `auth.uid()`가 null이면 정책 통과 못함. 반드시 로그인된 클라이언트에서 호출
+
+**Edge Function 배포 후 500 에러**:
+→ `supabase functions logs stt-proxy`로 런타임 에러 확인. 대부분 시크릿 미설정
diff --git a/docs/v2/phase-V2-2.md b/docs/v2/phase-V2-2.md
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+# Phase V2-2: Supabase 인프라 — 상세 설계
+
+> 멀티플랫폼(desktop/web/mobile)의 **단일 백엔드**를 Supabase 기반으로 구축.
+> 로컬 완결 작업(SQL 마이그레이션, Edge Functions)은 이 페이즈에서 전부 작성.
+> 사용자 액션(계정 생성, OAuth 등록, 배포)은 `phase-V2-2-setup.md` 참조.
+
+---
+
+## 1. 목표
+
+1. **인증**: Supabase Auth — Google/GitHub/Apple OAuth + Email
+2. **데이터 SSOT**: PostgreSQL — V1 SQLite 스키마를 멀티테넌시(user_id, team_id)로 포팅
+3. **보안**: Row Level Security — 개인 데이터 격리 + 팀 공유 지원
+4. **AI 프록시**: Edge Functions — Google STT, Claude LLM 호출을 서버에서 래핑 (API 키 은닉 + 쿼터 집계)
+5. **파일 스토리지**: Supabase Storage 버킷 3개 (audio, exports, avatars)
+6. **실시간**: 회의 진행 중 전사 세그먼트 실시간 동기화 (Realtime subscription)
+
+## 2. 디렉토리 구조
+
+```
+server/supabase/
+├── config.toml                     # 프로젝트 설정 (로컬 개발용)
+├── seed.sql                        # 개발 시드 데이터
+├── migrations/
+│   ├── 20260409000001_initial_schema.sql       # 테이블 + 인덱스
+│   ├── 20260409000002_rls_policies.sql         # RLS policies
+│   ├── 20260409000003_auth_triggers.sql        # handle_new_user, moddatetime
+│   └── 20260409000004_storage_buckets.sql      # storage 버킷 + policies
+└── functions/
+    ├── _shared/
+    │   ├── cors.ts                 # CORS 헤더 헬퍼
+    │   ├── auth.ts                 # JWT 검증 + user_id 추출
+    │   └── quota.ts                # 티어별 쿼터 체크
+    ├── stt-proxy/
+    │   └── index.ts                # Google Cloud STT 래퍼
+    └── llm-proxy/
+        └── index.ts                # Claude API 래퍼
+```
+
+## 3. 데이터 모델
+
+### 3.1 테이블 요약
+
+| 테이블 | 설명 | 멀티테넌시 |
+|---|---|---|
+| `public.profiles` | auth.users 확장 (name, avatar_url, locale, tier) | `id = auth.users.id` |
+| `public.meetings` | 회의 세션 (V1 meeting_sessions) | `user_id`, `team_id?` |
+| `public.meeting_memos` | 회의 중 타임스탬프 메모 | `meeting_id → meetings` |
+| `public.meeting_documents` | LLM 생성 문서 (minutes/report/mindmap) | `meeting_id → meetings` |
+| `public.transcripts` | 전사 세그먼트 (실시간 동기화 대상) | `meeting_id → meetings` |
+| `public.history` | 음성 입력 히스토리 (dictation/translate 등) | `user_id` |
+| `public.dictionary` | 사용자 사전 | `user_id` |
+| `public.memo_tags` | 히스토리 태그 | `user_id`, `history_id → history` |
+| `public.daily_usage` | 기능별 일일 사용량 (쿼터 집계) | `user_id` |
+| `public.teams` | 팀 | `owner_id → auth.users` |
+| `public.team_members` | 팀 멤버십 | `team_id`, `user_id`, role |
+| `public.subscriptions` | Stripe 구독 상태 | `user_id` |
+
+### 3.2 V1 SQLite ↔ V2 PostgreSQL 타입 매핑
+
+| V1 (drizzle sqlite-core) | V2 (PostgreSQL) | 비고 |
+|---|---|---|
+| `text('id').primaryKey()` (nanoid) | `uuid primary key default gen_random_uuid()` | 신규는 UUID 사용 |
+| `integer('created_at')` (epoch ms) | `timestamptz not null default now()` | Date/Time 네이티브 |
+| `integer('indexed', mode: 'boolean')` | `boolean not null default false` | |
+| `real('duration')` | `double precision` | |
+| `text('status', {enum: ...})` | `text check (status in (...))` 또는 enum | enum 타입으로 |
+| `text('embedding')` (JSON float[]) | `vector(768)` via pgvector | RAG 전용 |
+
+### 3.3 공통 컬럼
+
+모든 유저 소유 테이블:
+- `user_id uuid not null references auth.users(id) on delete cascade`
+- `created_at timestamptz not null default now()`
+- `updated_at timestamptz not null default now()` (트리거로 자동 갱신)
+
+회의 관련 테이블만 추가:
+- `team_id uuid references public.teams(id) on delete set null` (nullable — 개인 회의는 null)
+
+## 4. RLS 정책 패턴
+
+### 4.1 개인 전용 테이블 (history, dictionary, memo_tags, daily_usage)
+
+```sql
+CREATE POLICY "users_own_rows" ON public.history
+  FOR ALL
+  USING (user_id = auth.uid())
+  WITH CHECK (user_id = auth.uid());
+```
+
+### 4.2 팀 공유 가능 테이블 (meetings, meeting_memos, meeting_documents, transcripts)
+
+```sql
+-- SELECT: 본인 소유 OR 소속 팀의 리소스
+CREATE POLICY "meetings_read" ON public.meetings
+  FOR SELECT
+  USING (
+    user_id = auth.uid()
+    OR team_id IN (
+      SELECT team_id FROM public.team_members WHERE user_id = auth.uid()
+    )
+  );
+
+-- INSERT: 본인 user_id 강제
+CREATE POLICY "meetings_insert" ON public.meetings
+  FOR INSERT
+  WITH CHECK (user_id = auth.uid());
+
+-- UPDATE: 본인 소유 OR 팀 admin 이상
+CREATE POLICY "meetings_update" ON public.meetings
+  FOR UPDATE
+  USING (
+    user_id = auth.uid()
+    OR team_id IN (
+      SELECT team_id FROM public.team_members
+      WHERE user_id = auth.uid() AND role IN ('owner', 'admin')
+    )
+  );
+
+-- DELETE: 본인 소유만
+CREATE POLICY "meetings_delete" ON public.meetings
+  FOR DELETE
+  USING (user_id = auth.uid());
+```
+
+### 4.3 팀 자체 (teams, team_members)
+
+```sql
+-- 팀 조회: 본인이 소유 OR 멤버
+CREATE POLICY "teams_read" ON public.teams
+  FOR SELECT
+  USING (
+    owner_id = auth.uid()
+    OR id IN (SELECT team_id FROM public.team_members WHERE user_id = auth.uid())
+  );
+
+-- 팀 생성: 누구나 (owner = 본인)
+CREATE POLICY "teams_insert" ON public.teams
+  FOR INSERT WITH CHECK (owner_id = auth.uid());
+
+-- 팀 수정: owner만
+CREATE POLICY "teams_update" ON public.teams
+  FOR UPDATE USING (owner_id = auth.uid());
+```
+
+## 5. Auth 트리거
+
+### 5.1 `handle_new_user` — auth.users → profiles 자동 생성
+
+```sql
+CREATE OR REPLACE FUNCTION public.handle_new_user()
+RETURNS trigger
+LANGUAGE plpgsql
+SECURITY DEFINER
+SET search_path = public
+AS $$
+BEGIN
+  INSERT INTO public.profiles (id, name, avatar_url, locale)
+  VALUES (
+    NEW.id,
+    COALESCE(NEW.raw_user_meta_data->>'full_name', NEW.raw_user_meta_data->>'name', split_part(NEW.email, '@', 1)),
+    NEW.raw_user_meta_data->>'avatar_url',
+    COALESCE(NEW.raw_user_meta_data->>'locale', 'ko')
+  );
+  RETURN NEW;
+END;
+$$;
+
+CREATE TRIGGER on_auth_user_created
+  AFTER INSERT ON auth.users
+  FOR EACH ROW EXECUTE FUNCTION public.handle_new_user();
+```
+
+### 5.2 `moddatetime` — updated_at 자동 갱신
+
+```sql
+CREATE OR REPLACE FUNCTION public.moddatetime()
+RETURNS trigger
+LANGUAGE plpgsql
+AS $$
+BEGIN
+  NEW.updated_at = now();
+  RETURN NEW;
+END;
+$$;
+
+-- 각 테이블마다:
+CREATE TRIGGER set_updated_at
+  BEFORE UPDATE ON public.meetings
+  FOR EACH ROW EXECUTE FUNCTION public.moddatetime();
+```
+
+## 6. Edge Functions
+
+### 6.1 공통: `_shared/auth.ts`
+
+```typescript
+import { createClient, User } from 'https://esm.sh/@supabase/supabase-js@2'
+
+export async function requireUser(req: Request): Promise<User> {
+  const authHeader = req.headers.get('Authorization')
+  if (!authHeader) throw new Response('Unauthorized', { status: 401 })
+
+  const supabase = createClient(
+    Deno.env.get('SUPABASE_URL')!,
+    Deno.env.get('SUPABASE_ANON_KEY')!,
+    { global: { headers: { Authorization: authHeader } } }
+  )
+
+  const { data: { user }, error } = await supabase.auth.getUser()
+  if (error || !user) throw new Response('Unauthorized', { status: 401 })
+  return user
+}
+```
+
+### 6.2 `stt-proxy/` — Google Cloud STT 래퍼
+
+- 입력: `multipart/form-data` (audio blob + sample_rate + language_code)
+- 인증: JWT → user 추출
+- 쿼터: `daily_usage` 확인 → 초과 시 429
+- 호출: Google Cloud Speech-to-Text API (v2 recognize)
+- 응답: `{ transcript, confidence, language_code, duration_seconds }`
+- 사이드 이펙트: `daily_usage.count` 증가
+
+### 6.3 `llm-proxy/` — Claude API 래퍼
+
+- 입력: `application/json` (messages + system + max_tokens + model)
+- 인증: 동일
+- 쿼터: 동일 (`llm_process` feature)
+- 호출: Anthropic Messages API (스트리밍 지원)
+- 응답: SSE 스트림 또는 JSON
+- 모델 정책: Free → Haiku 강제, Pro+ → Sonnet 허용
+
+## 7. Storage 버킷
+
+```sql
+INSERT INTO storage.buckets (id, name, public) VALUES
+  ('audio', 'audio', false),       -- 녹음 원본 (비공개)
+  ('exports', 'exports', false),   -- PDF/DOCX 내보내기
+  ('avatars', 'avatars', true);    -- 프로필 사진 (공개)
+```
+
+정책: 파일 경로가 `{user_id}/...`로 시작해야 쓰기 허용.
+
+## 8. 실시간 구독 전략
+
+- 회의 중 `transcripts` INSERT → Realtime 구독으로 팀원에게 전파
+- 회의록 편집 중 `meeting_documents` UPDATE → CRDT 병합 (V2-7 팀 기능에서 구현)
+
+## 9. 검증 전략
+
+V2-2는 로컬에서 전체 검증 불가 (Supabase 프로젝트 필요). 이 페이즈 완료 판정 기준:
+
+1. ✅ SQL 마이그레이션 파일 작성 완료
+2. ✅ Edge Functions 스캐폴딩 완료 (TypeScript 컴파일 가능)
+3. ✅ 설정 가이드 문서 완료
+4. ⏳ 실제 deploy 검증은 사용자가 `supabase db push` 후 진행 (V2-2b)
+
+## 10. 다음 페이즈와의 관계
+
+- **V2-3 (Web App)**: Next.js에서 `@supabase/supabase-js` 클라이언트로 직접 연결
+- **V2-4 (데스크톱 동기화)**: apps/desktop에 supabase 클라이언트 추가, 로컬 SQLite ↔ Postgres 양방향 sync 레이어
+- **V2-7 (팀 기능)**: teams/team_members 테이블 + invite flow
diff --git a/memory/project_status.md b/memory/project_status.md
index 6eb478f..735bed2 100644
--- a/memory/project_status.md
+++ b/memory/project_status.md
@@ -6,12 +6,12 @@
 ## 현재 단계
 
 **V1 (Electron) 완료** → **V2 (Monorepo) 진행 중**
-- Phase V2-1 (전체) ✅ 완료
-  - V2-1a: Monorepo 구조 이동
-  - V2-1b: packages/core 추출
-  - V2-1c: packages/ui 추출
-  - V2-1d: packages/i18n 추출
-- 다음: Phase V2-2 (Supabase 인프라)
+- Phase V2-1 ✅ 완료 (Monorepo 전환 — a/b/c/d)
+- Phase V2-2 🟡 로컬 작업 완료, 사용자 액션 대기
+  - SQL 마이그레이션 4개 파일 + Edge Functions 2개 스캐폴딩 작성 완료
+  - Supabase 프로젝트 생성/OAuth 등록/배포는 사용자가 직접 수행
+  - 가이드: `docs/v2/phase-V2-2-setup.md`
+- 다음: Phase V2-3 (Web App MVP — Next.js)
 
 ## V1 완료 페이즈
 
@@ -138,8 +138,43 @@
 - `npm run dev` ✅ 실제 실행 → DB 경로 `d3ro-voice/`로 복원, 기존 핫키(Alt keyCode=2) 로드, Ollama 자동 실행 감지 모두 정상
 - `npm run dist` (electron-builder installer)은 V2-1 완료 후 별도 검증
 
-### Phase V2-2~V2-8: 미착수
-Supabase 인프라, Web App MVP, 데스크톱 동기화, Mac 빌드, Mobile App, 팀 기능, 결제/출시
+### Phase V2-2: Supabase 인프라 — 로컬 작업 완료
+
+**작성된 파일** (`server/supabase/`)
+- `config.toml` — Supabase CLI 설정 (로컬 + OAuth providers)
+- `migrations/20260409000001_initial_schema.sql` — 12개 테이블 (profiles, teams, team_members, meetings, meeting_memos, meeting_documents, transcripts, history, dictionary, memo_tags, daily_usage, subscriptions) + 인덱스 + FK CASCADE
+- `migrations/20260409000002_rls_policies.sql` — 개인/팀 이중 RLS 패턴
+- `migrations/20260409000003_auth_triggers.sql` — `handle_new_user` (profiles + subscriptions 자동 생성), `moddatetime` (8개 테이블 updated_at 트리거), `increment_daily_usage` (service_role 전용 쿼터 RPC)
+- `migrations/20260409000004_storage_buckets.sql` — audio/exports/avatars 버킷 + 경로 기반 정책
+- `functions/_shared/` — cors.ts, auth.ts (requireUser), quota.ts (티어별 쿼터)
+- `functions/stt-proxy/index.ts` — Google Cloud STT 래퍼 스캐폴딩 (placeholder 응답)
+- `functions/llm-proxy/index.ts` — Anthropic Messages API 래퍼 스캐폴딩 (티어별 모델 정책)
+- `seed.sql` — 개발 시드 (빈 상태)
+- `.gitignore` — .branches/, .temp/, .env
+
+**설계 문서**
+- `docs/v2/phase-V2-2.md` — 상세 설계 (스키마/RLS/Edge Functions/실시간/Storage)
+- `docs/v2/phase-V2-2-setup.md` — 사용자 액션 가이드 (Supabase 계정/OAuth/CLI/배포)
+
+**사용자 액션 대기 중** (로컬 외 작업)
+1. Supabase 프로젝트 생성 (https://supabase.com)
+2. `supabase login && supabase link --project-ref <REF>`
+3. `supabase db push` (4개 마이그레이션 적용)
+4. Google/GitHub OAuth 앱 등록 + Supabase Auth Providers 설정
+5. Google Cloud STT 키 + Anthropic API 키 발급
+6. `supabase secrets set` + `supabase functions deploy`
+
+**설계 결정사항**
+- **UUID PK**: V1은 nanoid(text), V2는 PostgreSQL `gen_random_uuid()`. V2-4 (동기화)에서 기존 SQLite 데이터는 nanoid 유지, 새 데이터는 UUID.
+- **timestamptz**: V1은 epoch ms(integer), V2는 `timestamptz`. V2-4 동기화 시 타입 변환 필요.
+- **멀티테넌시**: 모든 테이블에 `user_id`. 회의 관련 테이블은 `team_id` nullable 추가.
+- **RLS 이중 패턴**: 개인 전용(history/dictionary)은 단순 `user_id = auth.uid()`. 팀 공유(meetings)는 본인 OR `team_members` 조회 subquery.
+- **쿼터 집계**: `increment_daily_usage` RPC는 `SECURITY DEFINER` + `service_role` only. 일반 유저는 읽기만.
+- **Realtime**: `transcripts` 테이블만 `supabase_realtime` publication에 추가 (회의 중 세그먼트 동기화 용).
+- **Edge Functions placeholder**: 인증/쿼터 파이프라인은 완성, 실제 AI API 호출은 주석 처리된 실제 구현 코드 포함. V2-3 (Web MVP) 진행 전까지 유지.
+
+### Phase V2-3~V2-8: 미착수
+Web App MVP, 데스크톱 동기화, Mac 빌드, Mobile App, 팀 기능, 결제/출시
 
 ## 알려진 차단/이슈
 
diff --git a/server/supabase/.gitignore b/server/supabase/.gitignore
new file mode 100644
index 0000000..0fb3c61
--- /dev/null
+++ b/server/supabase/.gitignore
@@ -0,0 +1,5 @@
+# Supabase 로컬 실행 시 생성되는 파일
+.branches/
+.temp/
+.env
+.env.*
diff --git a/server/supabase/config.toml b/server/supabase/config.toml
new file mode 100644
index 0000000..d4298e4
--- /dev/null
+++ b/server/supabase/config.toml
@@ -0,0 +1,88 @@
+# Supabase 프로젝트 설정 (로컬 개발 + CLI 기준)
+# 공식 문서: https://supabase.com/docs/guides/cli/config
+
+project_id = "d3ro-voice"
+
+[api]
+enabled = true
+port = 54321
+schemas = ["public", "storage"]
+extra_search_path = ["public", "extensions"]
+max_rows = 1000
+
+[db]
+port = 54322
+shadow_port = 54320
+major_version = 15
+
+[db.pooler]
+enabled = false
+
+[db.seed]
+enabled = true
+sql_paths = ["./seed.sql"]
+
+[realtime]
+enabled = true
+
+[studio]
+enabled = true
+port = 54323
+
+[inbucket]
+enabled = true
+port = 54324
+
+[storage]
+enabled = true
+file_size_limit = "50MiB"
+
+[auth]
+enabled = true
+site_url = "http://localhost:5173"
+additional_redirect_urls = [
+  "http://localhost:5173",
+  "https://d3ro.dev",
+  "d3ro-voice://auth-callback"
+]
+jwt_expiry = 3600
+enable_signup = true
+enable_anonymous_sign_ins = false
+enable_manual_linking = false
+
+[auth.email]
+enable_signup = true
+double_confirm_changes = true
+enable_confirmations = false
+
+[auth.external.google]
+enabled = true
+client_id = "env(GOOGLE_OAUTH_CLIENT_ID)"
+secret = "env(GOOGLE_OAUTH_SECRET)"
+redirect_uri = ""
+
+[auth.external.github]
+enabled = true
+client_id = "env(GITHUB_OAUTH_CLIENT_ID)"
+secret = "env(GITHUB_OAUTH_SECRET)"
+redirect_uri = ""
+
+[auth.external.apple]
+enabled = true
+client_id = "env(APPLE_OAUTH_CLIENT_ID)"
+secret = "env(APPLE_OAUTH_SECRET)"
+redirect_uri = ""
+
+[edge_runtime]
+enabled = true
+policy = "per_worker"
+inspector_port = 8083
+
+[functions.stt-proxy]
+verify_jwt = true
+
+[functions.llm-proxy]
+verify_jwt = true
+
+[analytics]
+enabled = false
diff --git a/server/supabase/functions/_shared/auth.ts b/server/supabase/functions/_shared/auth.ts
new file mode 100644
index 0000000..12cb6a7
--- /dev/null
+++ b/server/supabase/functions/_shared/auth.ts
@@ -0,0 +1,49 @@
+// server/supabase/functions/_shared/auth.ts
+// JWT 검증 + 인증된 유저 반환
+
+// @ts-expect-error — Deno 런타임 import (타입 보강은 deno.json 또는 skipLibCheck)
+import { createClient, type User } from 'https://esm.sh/@supabase/supabase-js@2.39.7'
+
+export interface AuthError {
+  status: number
+  message: string
+}
+
+export function authErrorResponse(error: AuthError, corsHeaders: Record<string, string>): Response {
+  return new Response(JSON.stringify({ error: error.message }), {
+    status: error.status,
+    headers: { ...corsHeaders, 'Content-Type': 'application/json' }
+  })
+}
+
+/**
+ * Authorization 헤더에서 JWT를 추출하여 유저를 검증한다.
+ * 실패 시 예외 대신 AuthError 객체를 throw.
+ */
+export async function requireUser(req: Request): Promise<User> {
+  const authHeader = req.headers.get('Authorization')
+  if (!authHeader) {
+    // eslint-disable-next-line @typescript-eslint/no-throw-literal
+    throw { status: 401, message: 'Missing Authorization header' } as AuthError
+  }
+
+  // @ts-expect-error — Deno.env는 Deno 런타임 전역
+  const supabaseUrl = Deno.env.get('SUPABASE_URL') ?? ''
+  // @ts-expect-error — Deno.env는 Deno 런타임 전역
+  const supabaseAnonKey = Deno.env.get('SUPABASE_ANON_KEY') ?? ''
+
+  const supabase = createClient(supabaseUrl, supabaseAnonKey, {
+    global: { headers: { Authorization: authHeader } }
+  })
+
+  const {
+    data: { user },
+    error
+  } = await supabase.auth.getUser()
+
+  if (error || !user) {
+    // eslint-disable-next-line @typescript-eslint/no-throw-literal
+    throw { status: 401, message: error?.message ?? 'Invalid auth token' } as AuthError
+  }
+  return user
+}
diff --git a/server/supabase/functions/_shared/cors.ts b/server/supabase/functions/_shared/cors.ts
new file mode 100644
index 0000000..a00c7c1
--- /dev/null
+++ b/server/supabase/functions/_shared/cors.ts
@@ -0,0 +1,16 @@
+// server/supabase/functions/_shared/cors.ts
+// Edge Function 공통 CORS 헤더
+
+export const corsHeaders: Record<string, string> = {
+  'Access-Control-Allow-Origin': '*',
+  'Access-Control-Allow-Headers':
+    'authorization, x-client-info, apikey, content-type',
+  'Access-Control-Allow-Methods': 'POST, OPTIONS'
+}
+
+export function handleCorsPreflightRequest(req: Request): Response | null {
+  if (req.method === 'OPTIONS') {
+    return new Response('ok', { headers: corsHeaders })
+  }
+  return null
+}
diff --git a/server/supabase/functions/_shared/quota.ts b/server/supabase/functions/_shared/quota.ts
new file mode 100644
index 0000000..0e99ce7
--- /dev/null
+++ b/server/supabase/functions/_shared/quota.ts
@@ -0,0 +1,108 @@
+// server/supabase/functions/_shared/quota.ts
+// 티어별 기능 쿼터 확인 + 증가
+
+// @ts-expect-error — Deno 런타임 import
+import { createClient } from 'https://esm.sh/@supabase/supabase-js@2.39.7'
+
+export type Tier = 'free' | 'pro' | 'team'
+export type Feature = 'stt_transcribe' | 'llm_process'
+
+/** 일일 쿼터 정책 (-1 = 무제한) */
+const DAILY_QUOTA: Record<Tier, Record<Feature, number>> = {
+  free: {
+    stt_transcribe: 50,
+    llm_process: 50
+  },
+  pro: {
+    stt_transcribe: -1,
+    llm_process: -1
+  },
+  team: {
+    stt_transcribe: -1,
+    llm_process: -1
+  }
+}
+
+export interface QuotaCheck {
+  allowed: boolean
+  current: number
+  limit: number
+  tier: Tier
+}
+
+/**
+ * 유저의 오늘 사용량을 확인하고 쿼터 초과 여부를 반환.
+ * 실제 증가는 performQuotaConsume 호출 시 수행.
+ */
+export async function checkQuota(
+  userId: string,
+  feature: Feature,
+  serviceRoleClient: ReturnType<typeof createClient>
+): Promise<QuotaCheck> {
+  // 티어 조회
+  const { data: sub } = await serviceRoleClient
+    .from('subscriptions')
+    .select('tier')
+    .eq('user_id', userId)
+    .single()
+
+  const tier: Tier = (sub?.tier as Tier) ?? 'free'
+  const limit = DAILY_QUOTA[tier][feature]
+
+  if (limit === -1) {
+    return { allowed: true, current: 0, limit, tier }
+  }
+
+  // 오늘 사용량 조회
+  const today = new Date().toISOString().slice(0, 10)
+  const { data: usage } = await serviceRoleClient
+    .from('daily_usage')
+    .select('count')
+    .eq('user_id', userId)
+    .eq('date', today)
+    .eq('feature', feature)
+    .maybeSingle()
+
+  const current = (usage?.count as number) ?? 0
+  return {
+    allowed: current < limit,
+    current,
+    limit,
+    tier
+  }
+}
+
+/**
+ * 쿼터 소비. increment_daily_usage 함수 호출 (service_role 전용).
+ */
+export async function consumeQuota(
+  userId: string,
+  feature: Feature,
+  serviceRoleClient: ReturnType<typeof createClient>,
+  amount: number = 1
+): Promise<number> {
+  const { data, error } = await serviceRoleClient.rpc('increment_daily_usage', {
+    p_user_id: userId,
+    p_feature: feature,
+    p_amount: amount
+  })
+
+  if (error) {
+    throw new Error(`Failed to increment quota: ${error.message}`)
+  }
+
+  return (data as number) ?? 0
+}
+
+/**
+ * service role 클라이언트 생성 헬퍼
+ */
+export function createServiceRoleClient(): ReturnType<typeof createClient> {
+  // @ts-expect-error — Deno.env는 Deno 런타임 전역
+  const url = Deno.env.get('SUPABASE_URL') ?? ''
+  // @ts-expect-error — Deno.env는 Deno 런타임 전역
+  const serviceKey = Deno.env.get('SUPABASE_SERVICE_ROLE_KEY') ?? ''
+  return createClient(url, serviceKey, {
+    auth: { persistSession: false, autoRefreshToken: false }
+  })
+}
diff --git a/server/supabase/functions/deno.json b/server/supabase/functions/deno.json
new file mode 100644
index 0000000..44baa82
--- /dev/null
+++ b/server/supabase/functions/deno.json
@@ -0,0 +1,10 @@
+{
+  "compilerOptions": {
+    "allowJs": true,
+    "strict": true,
+    "lib": ["deno.window", "deno.unstable"]
+  },
+  "imports": {
+    "@supabase/supabase-js": "https://esm.sh/@supabase/supabase-js@2.39.7"
+  }
+}
diff --git a/server/supabase/functions/llm-proxy/index.ts b/server/supabase/functions/llm-proxy/index.ts
new file mode 100644
index 0000000..053d57a
--- /dev/null
+++ b/server/supabase/functions/llm-proxy/index.ts
@@ -0,0 +1,138 @@
+// server/supabase/functions/llm-proxy/index.ts
+// Anthropic Claude Messages API 프록시.
+// 요청: application/json { messages, system?, max_tokens?, model? }
+// 응답: JSON (non-stream) 또는 SSE (stream=true)
+
+import { corsHeaders, handleCorsPreflightRequest } from '../_shared/cors.ts'
+import { requireUser, authErrorResponse, type AuthError } from '../_shared/auth.ts'
+import { checkQuota, consumeQuota, createServiceRoleClient, type Tier } from '../_shared/quota.ts'
+
+interface LlmRequest {
+  messages: Array<{ role: 'user' | 'assistant'; content: string }>
+  system?: string
+  max_tokens?: number
+  model?: string
+  stream?: boolean
+}
+
+/** 티어별 허용 모델 */
+const TIER_MODELS: Record<Tier, string[]> = {
+  free: ['claude-haiku-4-5-20251001'],
+  pro: ['claude-haiku-4-5-20251001', 'claude-sonnet-4-6'],
+  team: ['claude-haiku-4-5-20251001', 'claude-sonnet-4-6', 'claude-opus-4-6']
+}
+
+const DEFAULT_MODEL: Record<Tier, string> = {
+  free: 'claude-haiku-4-5-20251001',
+  pro: 'claude-sonnet-4-6',
+  team: 'claude-sonnet-4-6'
+}
+
+// @ts-expect-error — Deno 런타임 전역
+Deno.serve(async (req: Request) => {
+  const preflight = handleCorsPreflightRequest(req)
+  if (preflight) return preflight
+
+  if (req.method !== 'POST') {
+    return new Response(JSON.stringify({ error: 'Method not allowed' }), {
+      status: 405,
+      headers: { ...corsHeaders, 'Content-Type': 'application/json' }
+    })
+  }
+
+  try {
+    const user = await requireUser(req)
+    const serviceClient = createServiceRoleClient()
+    const quota = await checkQuota(user.id, 'llm_process', serviceClient)
+    if (!quota.allowed) {
+      return new Response(
+        JSON.stringify({
+          error: 'quota_exceeded',
+          current: quota.current,
+          limit: quota.limit,
+          tier: quota.tier
+        }),
+        {
+          status: 429,
+          headers: { ...corsHeaders, 'Content-Type': 'application/json' }
+        }
+      )
+    }
+
+    const body = (await req.json()) as LlmRequest
+
+    // 모델 선택 + 티어 검증
+    const requestedModel = body.model ?? DEFAULT_MODEL[quota.tier]
+    if (!TIER_MODELS[quota.tier].includes(requestedModel)) {
+      return new Response(
+        JSON.stringify({
+          error: 'model_not_allowed',
+          tier: quota.tier,
+          requested: requestedModel,
+          allowed: TIER_MODELS[quota.tier]
+        }),
+        {
+          status: 403,
+          headers: { ...corsHeaders, 'Content-Type': 'application/json' }
+        }
+      )
+    }
+
+    // Anthropic API 호출 — placeholder
+    //
+    // 실제 구현 시:
+    //   const anthropicKey = Deno.env.get('ANTHROPIC_API_KEY')!
+    //   const resp = await fetch('https://api.anthropic.com/v1/messages', {
+    //     method: 'POST',
+    //     headers: {
+    //       'Content-Type': 'application/json',
+    //       'x-api-key': anthropicKey,
+    //       'anthropic-version': '2023-06-01'
+    //     },
+    //     body: JSON.stringify({
+    //       model: requestedModel,
+    //       max_tokens: body.max_tokens ?? 2048,
+    //       system: body.system,
+    //       messages: body.messages,
+    //       stream: body.stream ?? false
+    //     })
+    //   })
+    //   if (body.stream) {
+    //     return new Response(resp.body, {
+    //       headers: { ...corsHeaders, 'Content-Type': 'text/event-stream' }
+    //     })
+    //   }
+    //   const data = await resp.json()
+    //   ...
+
+    await consumeQuota(user.id, 'llm_process', serviceClient, 1)
+
+    const placeholder = {
+      id: `msg_placeholder_${Date.now()}`,
+      model: requestedModel,
+      role: 'assistant',
+      content: [
+        {
+          type: 'text',
+          text: '[llm-proxy placeholder — Anthropic API not yet wired]'
+        }
+      ],
+      stop_reason: 'end_turn',
+      usage: { input_tokens: 0, output_tokens: 0 }
+    }
+
+    return new Response(JSON.stringify(placeholder), {
+      status: 200,
+      headers: { ...corsHeaders, 'Content-Type': 'application/json' }
+    })
+  } catch (err) {
+    if (err && typeof err === 'object' && 'status' in err && 'message' in err) {
+      return authErrorResponse(err as AuthError, corsHeaders)
+    }
+    const message = err instanceof Error ? err.message : 'Unknown error'
+    return new Response(JSON.stringify({ error: message }), {
+      status: 500,
+      headers: { ...corsHeaders, 'Content-Type': 'application/json' }
+    })
+  }
+})
diff --git a/server/supabase/functions/stt-proxy/index.ts b/server/supabase/functions/stt-proxy/index.ts
new file mode 100644
index 0000000..795e8eb
--- /dev/null
+++ b/server/supabase/functions/stt-proxy/index.ts
@@ -0,0 +1,116 @@
+// server/supabase/functions/stt-proxy/index.ts
+// Google Cloud Speech-to-Text 프록시.
+// 요청: multipart/form-data (audio + sample_rate + language_code)
+// 응답: { transcript, confidence, language_code, duration_seconds }
+
+import { corsHeaders, handleCorsPreflightRequest } from '../_shared/cors.ts'
+import { requireUser, authErrorResponse, type AuthError } from '../_shared/auth.ts'
+import { checkQuota, consumeQuota, createServiceRoleClient } from '../_shared/quota.ts'
+
+interface SttResult {
+  transcript: string
+  confidence: number
+  language_code: string
+  duration_seconds: number
+}
+
+// @ts-expect-error — Deno 런타임 전역
+Deno.serve(async (req: Request) => {
+  const preflight = handleCorsPreflightRequest(req)
+  if (preflight) return preflight
+
+  if (req.method !== 'POST') {
+    return new Response(JSON.stringify({ error: 'Method not allowed' }), {
+      status: 405,
+      headers: { ...corsHeaders, 'Content-Type': 'application/json' }
+    })
+  }
+
+  try {
+    // 1) 인증
+    const user = await requireUser(req)
+
+    // 2) 쿼터 체크
+    const serviceClient = createServiceRoleClient()
+    const quota = await checkQuota(user.id, 'stt_transcribe', serviceClient)
+    if (!quota.allowed) {
+      return new Response(
+        JSON.stringify({
+          error: 'quota_exceeded',
+          current: quota.current,
+          limit: quota.limit,
+          tier: quota.tier
+        }),
+        {
+          status: 429,
+          headers: { ...corsHeaders, 'Content-Type': 'application/json' }
+        }
+      )
+    }
+
+    // 3) 입력 파싱
+    const formData = await req.formData()
+    const audio = formData.get('audio')
+    const sampleRate = Number(formData.get('sample_rate') ?? 16000)
+    const languageCode = String(formData.get('language_code') ?? 'ko-KR')
+
+    if (!(audio instanceof Blob)) {
+      return new Response(JSON.stringify({ error: 'Missing audio field' }), {
+        status: 400,
+        headers: { ...corsHeaders, 'Content-Type': 'application/json' }
+      })
+    }
+
+    // 4) Google Cloud STT 호출 — placeholder
+    //
+    // 실제 구현 시:
+    //   const audioBytes = new Uint8Array(await audio.arrayBuffer())
+    //   const base64Audio = btoa(String.fromCharCode(...audioBytes))
+    //   const gcpKey = Deno.env.get('GOOGLE_CLOUD_STT_KEY')!
+    //   const response = await fetch(
+    //     `https://speech.googleapis.com/v1/speech:recognize?key=${gcpKey}`,
+    //     {
+    //       method: 'POST',
+    //       headers: { 'Content-Type': 'application/json' },
+    //       body: JSON.stringify({
+    //         config: {
+    //           encoding: 'LINEAR16',
+    //           sampleRateHertz: sampleRate,
+    //           languageCode,
+    //           enableAutomaticPunctuation: true
+    //         },
+    //         audio: { content: base64Audio }
+    //       })
+    //     }
+    //   )
+    //   const data = await response.json()
+    //   const transcript = data.results?.[0]?.alternatives?.[0]?.transcript ?? ''
+    //   const confidence = data.results?.[0]?.alternatives?.[0]?.confidence ?? 0
+    //
+    // 스캐폴딩 단계에서는 placeholder 응답.
+
+    const placeholder: SttResult = {
+      transcript: '[stt-proxy placeholder — Google Cloud STT not yet wired]',
+      confidence: 0,
+      language_code: languageCode,
+      duration_seconds: (audio.size / sampleRate / 2)  // 16-bit mono 가정
+    }
+
+    // 5) 쿼터 소비
+    await consumeQuota(user.id, 'stt_transcribe', serviceClient, 1)
+
+    return new Response(JSON.stringify(placeholder), {
+      status: 200,
+      headers: { ...corsHeaders, 'Content-Type': 'application/json' }
+    })
+  } catch (err) {
+    if (err && typeof err === 'object' && 'status' in err && 'message' in err) {
+      return authErrorResponse(err as AuthError, corsHeaders)
+    }
+    const message = err instanceof Error ? err.message : 'Unknown error'
+    return new Response(JSON.stringify({ error: message }), {
+      status: 500,
+      headers: { ...corsHeaders, 'Content-Type': 'application/json' }
+    })
+  }
+})
diff --git a/server/supabase/migrations/20260409000001_initial_schema.sql b/server/supabase/migrations/20260409000001_initial_schema.sql
new file mode 100644
index 0000000..f43bf36
--- /dev/null
+++ b/server/supabase/migrations/20260409000001_initial_schema.sql
@@ -0,0 +1,237 @@
+-- ============================================================================
+-- Phase V2-2: 초기 스키마 마이그레이션
+-- V1 SQLite schema를 PostgreSQL로 포팅 + 멀티테넌시(user_id/team_id) 추가
+-- ============================================================================
+
+-- Extensions ------------------------------------------------------------------
+CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
+CREATE EXTENSION IF NOT EXISTS "pgcrypto";
+
+-- ============================================================================
+-- profiles: auth.users 확장 (1:1)
+-- ============================================================================
+CREATE TABLE public.profiles (
+  id          uuid PRIMARY KEY REFERENCES auth.users(id) ON DELETE CASCADE,
+  name        text,
+  avatar_url  text,
+  locale      text NOT NULL DEFAULT 'ko',
+  tier        text NOT NULL DEFAULT 'free' CHECK (tier IN ('free', 'pro', 'team')),
+  created_at  timestamptz NOT NULL DEFAULT now(),
+  updated_at  timestamptz NOT NULL DEFAULT now()
+);
+
+COMMENT ON TABLE public.profiles IS 'auth.users 확장 — 유저 메타데이터와 구독 티어';
+
+-- ============================================================================
+-- teams / team_members: 팀 협업
+-- ============================================================================
+CREATE TABLE public.teams (
+  id          uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+  name        text NOT NULL,
+  owner_id    uuid NOT NULL REFERENCES auth.users(id) ON DELETE CASCADE,
+  avatar_url  text,
+  created_at  timestamptz NOT NULL DEFAULT now(),
+  updated_at  timestamptz NOT NULL DEFAULT now()
+);
+
+CREATE INDEX idx_teams_owner_id ON public.teams(owner_id);
+
+CREATE TABLE public.team_members (
+  team_id     uuid NOT NULL REFERENCES public.teams(id) ON DELETE CASCADE,
+  user_id     uuid NOT NULL REFERENCES auth.users(id) ON DELETE CASCADE,
+  role        text NOT NULL CHECK (role IN ('owner', 'admin', 'member')) DEFAULT 'member',
+  joined_at   timestamptz NOT NULL DEFAULT now(),
+  PRIMARY KEY (team_id, user_id)
+);
+
+CREATE INDEX idx_team_members_user_id ON public.team_members(user_id);
+
+-- ============================================================================
+-- meetings: 회의 세션 (V1 meeting_sessions)
+-- ============================================================================
+CREATE TABLE public.meetings (
+  id                uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+  user_id           uuid NOT NULL REFERENCES auth.users(id) ON DELETE CASCADE,
+  team_id           uuid REFERENCES public.teams(id) ON DELETE SET NULL,
+  title             text,
+  status            text NOT NULL CHECK (status IN ('recording', 'processing', 'completed', 'error')) DEFAULT 'recording',
+  started_at        timestamptz NOT NULL DEFAULT now(),
+  ended_at          timestamptz,
+  duration_ms       bigint,
+  raw_transcript    text,
+  edited_transcript text,
+  minutes_markdown  text,
+  minutes_json      jsonb,
+  stt_model         text,
+  llm_model         text,
+  stt_latency_ms    integer,
+  llm_latency_ms    integer,
+  error_message     text,
+  audio_storage_key text,  -- storage.audio 버킷 내 경로
+  created_at        timestamptz NOT NULL DEFAULT now(),
+  updated_at        timestamptz NOT NULL DEFAULT now()
+);
+
+CREATE INDEX idx_meetings_user_id ON public.meetings(user_id);
+CREATE INDEX idx_meetings_team_id ON public.meetings(team_id);
+CREATE INDEX idx_meetings_status ON public.meetings(status);
+CREATE INDEX idx_meetings_started_at ON public.meetings(started_at DESC);
+
+-- ============================================================================
+-- meeting_memos: 회의 중 타임스탬프 메모
+-- ============================================================================
+CREATE TABLE public.meeting_memos (
+  id            uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+  meeting_id    uuid NOT NULL REFERENCES public.meetings(id) ON DELETE CASCADE,
+  user_id       uuid NOT NULL REFERENCES auth.users(id) ON DELETE CASCADE,
+  content       text NOT NULL,
+  timestamp_ms  bigint NOT NULL,
+  created_at    timestamptz NOT NULL DEFAULT now()
+);
+
+CREATE INDEX idx_meeting_memos_meeting_id ON public.meeting_memos(meeting_id);
+CREATE INDEX idx_meeting_memos_timestamp ON public.meeting_memos(meeting_id, timestamp_ms);
+
+-- ============================================================================
+-- meeting_documents: LLM 생성 문서 (minutes/report/mindmap/custom)
+-- ============================================================================
+CREATE TABLE public.meeting_documents (
+  id              uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+  meeting_id      uuid NOT NULL REFERENCES public.meetings(id) ON DELETE CASCADE,
+  user_id         uuid NOT NULL REFERENCES auth.users(id) ON DELETE CASCADE,
+  template_type   text NOT NULL CHECK (template_type IN ('minutes', 'report', 'idea-note', 'custom', 'mindmap')),
+  title           text NOT NULL,
+  content         text NOT NULL DEFAULT '',
+  prompt_used     text,
+  llm_model       text,
+  llm_latency_ms  integer,
+  created_at      timestamptz NOT NULL DEFAULT now(),
+  updated_at      timestamptz NOT NULL DEFAULT now()
+);
+
+CREATE INDEX idx_meeting_documents_meeting_id ON public.meeting_documents(meeting_id);
+
+-- ============================================================================
+-- transcripts: 전사 세그먼트 (실시간 동기화 대상)
+-- ============================================================================
+CREATE TABLE public.transcripts (
+  id              uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+  meeting_id      uuid NOT NULL REFERENCES public.meetings(id) ON DELETE CASCADE,
+  segment_index   integer NOT NULL,
+  timestamp_ms    bigint NOT NULL,
+  duration_ms     integer,
+  text            text NOT NULL,
+  speaker         text,          -- "화자 1", "화자 2" ... (Phase 15.5)
+  edited          boolean NOT NULL DEFAULT false,
+  created_at      timestamptz NOT NULL DEFAULT now(),
+  updated_at      timestamptz NOT NULL DEFAULT now()
+);
+
+CREATE INDEX idx_transcripts_meeting_id ON public.transcripts(meeting_id);
+CREATE UNIQUE INDEX idx_transcripts_segment ON public.transcripts(meeting_id, segment_index);
+
+-- Realtime publication에 추가 (회의 중 실시간 동기화)
+ALTER PUBLICATION supabase_realtime ADD TABLE public.transcripts;
+
+-- ============================================================================
+-- history: 음성 입력 이력 (V1 history — dictation/translate 등)
+-- ============================================================================
+CREATE TABLE public.history (
+  id                         uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+  user_id                    uuid NOT NULL REFERENCES auth.users(id) ON DELETE CASCADE,
+  title                      text,
+  original_text              text NOT NULL,
+  polished_text              text,
+  focused_app                text,
+  focused_app_name           text,
+  focused_app_window_title   text,
+  mode                       text NOT NULL CHECK (mode IN ('dictation', 'translate', 'command', 'caption', 'file-transcription')) DEFAULT 'dictation',
+  status                     text NOT NULL CHECK (status IN ('completed', 'cancelled', 'error')) DEFAULT 'completed',
+  error_code                 text,
+  audio_storage_key          text,
+  duration                   double precision NOT NULL,
+  detected_language          text,
+  mic_device                 text,
+  word_count                 integer NOT NULL DEFAULT 0,
+  stt_model                  text,
+  llm_model                  text,
+  stt_latency_ms             integer,
+  llm_latency_ms             integer,
+  app_version                text NOT NULL DEFAULT '1.0.0',
+  summary_text               text,
+  created_at                 timestamptz NOT NULL DEFAULT now(),
+  updated_at                 timestamptz NOT NULL DEFAULT now()
+);
+
+CREATE INDEX idx_history_user_id ON public.history(user_id);
+CREATE INDEX idx_history_created_at ON public.history(user_id, created_at DESC);
+CREATE INDEX idx_history_status ON public.history(user_id, status);
+CREATE INDEX idx_history_mode ON public.history(user_id, mode);
+CREATE INDEX idx_history_detected_language ON public.history(detected_language);
+
+-- ============================================================================
+-- dictionary: 사용자 사전
+-- ============================================================================
+CREATE TABLE public.dictionary (
+  id             uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+  user_id        uuid NOT NULL REFERENCES auth.users(id) ON DELETE CASCADE,
+  word           text NOT NULL,
+  pronunciation  text,
+  category       text NOT NULL CHECK (category IN ('user', 'auto', 'technical')) DEFAULT 'user',
+  usage_count    integer NOT NULL DEFAULT 0,
+  last_used_at   timestamptz,
+  created_at     timestamptz NOT NULL DEFAULT now(),
+  updated_at     timestamptz NOT NULL DEFAULT now(),
+  UNIQUE (user_id, word, category)
+);
+
+CREATE INDEX idx_dictionary_user_id ON public.dictionary(user_id);
+CREATE INDEX idx_dictionary_usage_count ON public.dictionary(user_id, usage_count DESC);
+
+-- ============================================================================
+-- memo_tags: history 태그
+-- ============================================================================
+CREATE TABLE public.memo_tags (
+  id          uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+  user_id     uuid NOT NULL REFERENCES auth.users(id) ON DELETE CASCADE,
+  history_id  uuid NOT NULL REFERENCES public.history(id) ON DELETE CASCADE,
+  tag         text NOT NULL,
+  created_at  timestamptz NOT NULL DEFAULT now(),
+  UNIQUE (history_id, tag)
+);
+
+CREATE INDEX idx_memo_tags_user_id ON public.memo_tags(user_id);
+CREATE INDEX idx_memo_tags_tag ON public.memo_tags(user_id, tag);
+
+-- ============================================================================
+-- daily_usage: 기능별 일일 사용량 (쿼터 집계)
+-- ============================================================================
+CREATE TABLE public.daily_usage (
+  id        bigserial PRIMARY KEY,
+  user_id   uuid NOT NULL REFERENCES auth.users(id) ON DELETE CASCADE,
+  date      date NOT NULL,
+  feature   text NOT NULL,
+  count     integer NOT NULL DEFAULT 0,
+  UNIQUE (user_id, date, feature)
+);
+
+CREATE INDEX idx_daily_usage_user_date ON public.daily_usage(user_id, date);
+
+-- ============================================================================
+-- subscriptions: Stripe 구독 연동
+-- ============================================================================
+CREATE TABLE public.subscriptions (
+  id                       uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+  user_id                  uuid NOT NULL UNIQUE REFERENCES auth.users(id) ON DELETE CASCADE,
+  tier                     text NOT NULL CHECK (tier IN ('free', 'pro', 'team')) DEFAULT 'free',
+  stripe_customer_id       text,
+  stripe_subscription_id   text,
+  status                   text,   -- active / canceled / past_due ...
+  current_period_start     timestamptz,
+  current_period_end       timestamptz,
+  cancel_at                timestamptz,
+  created_at               timestamptz NOT NULL DEFAULT now(),
+  updated_at               timestamptz NOT NULL DEFAULT now()
+);
+
+CREATE INDEX idx_subscriptions_stripe_customer ON public.subscriptions(stripe_customer_id);
diff --git a/server/supabase/migrations/20260409000002_rls_policies.sql b/server/supabase/migrations/20260409000002_rls_policies.sql
new file mode 100644
index 0000000..db86e89
--- /dev/null
+++ b/server/supabase/migrations/20260409000002_rls_policies.sql
@@ -0,0 +1,205 @@
+-- ============================================================================
+-- Phase V2-2: Row Level Security 정책
+-- 패턴:
+--   - 개인 전용 테이블: user_id = auth.uid()
+--   - 팀 공유 테이블: 본인 소유 OR 소속 팀의 리소스
+-- ============================================================================
+
+-- RLS 활성화 ------------------------------------------------------------------
+ALTER TABLE public.profiles            ENABLE ROW LEVEL SECURITY;
+ALTER TABLE public.teams               ENABLE ROW LEVEL SECURITY;
+ALTER TABLE public.team_members        ENABLE ROW LEVEL SECURITY;
+ALTER TABLE public.meetings            ENABLE ROW LEVEL SECURITY;
+ALTER TABLE public.meeting_memos       ENABLE ROW LEVEL SECURITY;
+ALTER TABLE public.meeting_documents   ENABLE ROW LEVEL SECURITY;
+ALTER TABLE public.transcripts         ENABLE ROW LEVEL SECURITY;
+ALTER TABLE public.history             ENABLE ROW LEVEL SECURITY;
+ALTER TABLE public.dictionary          ENABLE ROW LEVEL SECURITY;
+ALTER TABLE public.memo_tags           ENABLE ROW LEVEL SECURITY;
+ALTER TABLE public.daily_usage         ENABLE ROW LEVEL SECURITY;
+ALTER TABLE public.subscriptions       ENABLE ROW LEVEL SECURITY;
+
+-- ============================================================================
+-- profiles: 본인 프로필만 읽기/수정
+-- ============================================================================
+CREATE POLICY "profiles_read_own" ON public.profiles
+  FOR SELECT USING (id = auth.uid());
+
+CREATE POLICY "profiles_update_own" ON public.profiles
+  FOR UPDATE USING (id = auth.uid()) WITH CHECK (id = auth.uid());
+
+-- ============================================================================
+-- teams: 본인 소유 OR 멤버인 팀만 조회, 본인만 생성/수정/삭제
+-- ============================================================================
+CREATE POLICY "teams_read_member" ON public.teams
+  FOR SELECT USING (
+    owner_id = auth.uid()
+    OR id IN (SELECT team_id FROM public.team_members WHERE user_id = auth.uid())
+  );
+
+CREATE POLICY "teams_insert_own" ON public.teams
+  FOR INSERT WITH CHECK (owner_id = auth.uid());
+
+CREATE POLICY "teams_update_owner" ON public.teams
+  FOR UPDATE USING (owner_id = auth.uid()) WITH CHECK (owner_id = auth.uid());
+
+CREATE POLICY "teams_delete_owner" ON public.teams
+  FOR DELETE USING (owner_id = auth.uid());
+
+-- ============================================================================
+-- team_members: 같은 팀 멤버는 서로 조회 가능, 관리는 owner/admin
+-- ============================================================================
+CREATE POLICY "team_members_read_same_team" ON public.team_members
+  FOR SELECT USING (
+    team_id IN (SELECT team_id FROM public.team_members WHERE user_id = auth.uid())
+  );
+
+CREATE POLICY "team_members_insert_admin" ON public.team_members
+  FOR INSERT WITH CHECK (
+    team_id IN (
+      SELECT team_id FROM public.team_members
+      WHERE user_id = auth.uid() AND role IN ('owner', 'admin')
+    )
+  );
+
+CREATE POLICY "team_members_update_admin" ON public.team_members
+  FOR UPDATE USING (
+    team_id IN (
+      SELECT team_id FROM public.team_members
+      WHERE user_id = auth.uid() AND role IN ('owner', 'admin')
+    )
+  );
+
+CREATE POLICY "team_members_delete_admin_or_self" ON public.team_members
+  FOR DELETE USING (
+    user_id = auth.uid()  -- 본인 탈퇴
+    OR team_id IN (
+      SELECT team_id FROM public.team_members
+      WHERE user_id = auth.uid() AND role IN ('owner', 'admin')
+    )
+  );
+
+-- ============================================================================
+-- meetings: 본인 또는 소속 팀의 회의
+-- ============================================================================
+CREATE POLICY "meetings_read" ON public.meetings
+  FOR SELECT USING (
+    user_id = auth.uid()
+    OR (team_id IS NOT NULL AND team_id IN (
+      SELECT team_id FROM public.team_members WHERE user_id = auth.uid()
+    ))
+  );
+
+CREATE POLICY "meetings_insert" ON public.meetings
+  FOR INSERT WITH CHECK (user_id = auth.uid());
+
+CREATE POLICY "meetings_update" ON public.meetings
+  FOR UPDATE USING (
+    user_id = auth.uid()
+    OR (team_id IS NOT NULL AND team_id IN (
+      SELECT team_id FROM public.team_members
+      WHERE user_id = auth.uid() AND role IN ('owner', 'admin')
+    ))
+  );
+
+CREATE POLICY "meetings_delete" ON public.meetings
+  FOR DELETE USING (user_id = auth.uid());
+
+-- ============================================================================
+-- meeting_memos: 회의와 동일한 권한 (meeting RLS 경유)
+-- ============================================================================
+CREATE POLICY "meeting_memos_read" ON public.meeting_memos
+  FOR SELECT USING (
+    meeting_id IN (SELECT id FROM public.meetings)
+  );
+
+CREATE POLICY "meeting_memos_insert" ON public.meeting_memos
+  FOR INSERT WITH CHECK (
+    user_id = auth.uid()
+    AND meeting_id IN (SELECT id FROM public.meetings WHERE user_id = auth.uid() OR team_id IN (
+      SELECT team_id FROM public.team_members WHERE user_id = auth.uid()
+    ))
+  );
+
+CREATE POLICY "meeting_memos_update_own" ON public.meeting_memos
+  FOR UPDATE USING (user_id = auth.uid());
+
+CREATE POLICY "meeting_memos_delete_own" ON public.meeting_memos
+  FOR DELETE USING (user_id = auth.uid());
+
+-- ============================================================================
+-- meeting_documents: 동일 패턴
+-- ============================================================================
+CREATE POLICY "meeting_documents_read" ON public.meeting_documents
+  FOR SELECT USING (
+    meeting_id IN (SELECT id FROM public.meetings)
+  );
+
+CREATE POLICY "meeting_documents_insert" ON public.meeting_documents
+  FOR INSERT WITH CHECK (
+    user_id = auth.uid()
+    AND meeting_id IN (SELECT id FROM public.meetings WHERE user_id = auth.uid() OR team_id IN (
+      SELECT team_id FROM public.team_members WHERE user_id = auth.uid()
+    ))
+  );
+
+CREATE POLICY "meeting_documents_update" ON public.meeting_documents
+  FOR UPDATE USING (
+    user_id = auth.uid()
+    OR meeting_id IN (
+      SELECT id FROM public.meetings WHERE team_id IN (
+        SELECT team_id FROM public.team_members
+        WHERE user_id = auth.uid() AND role IN ('owner', 'admin')
+      )
+    )
+  );
+
+CREATE POLICY "meeting_documents_delete_own" ON public.meeting_documents
+  FOR DELETE USING (user_id = auth.uid());
+
+-- ============================================================================
+-- transcripts: 회의 RLS 경유
+-- ============================================================================
+CREATE POLICY "transcripts_read" ON public.transcripts
+  FOR SELECT USING (
+    meeting_id IN (SELECT id FROM public.meetings)
+  );
+
+CREATE POLICY "transcripts_insert" ON public.transcripts
+  FOR INSERT WITH CHECK (
+    meeting_id IN (SELECT id FROM public.meetings WHERE user_id = auth.uid())
+  );
+
+CREATE POLICY "transcripts_update" ON public.transcripts
+  FOR UPDATE USING (
+    meeting_id IN (SELECT id FROM public.meetings WHERE user_id = auth.uid())
+  );
+
+CREATE POLICY "transcripts_delete" ON public.transcripts
+  FOR DELETE USING (
+    meeting_id IN (SELECT id FROM public.meetings WHERE user_id = auth.uid())
+  );
+
+-- ============================================================================
+-- history, dictionary, memo_tags, daily_usage: 본인 전용
+-- ============================================================================
+CREATE POLICY "history_own" ON public.history
+  FOR ALL USING (user_id = auth.uid()) WITH CHECK (user_id = auth.uid());
+
+CREATE POLICY "dictionary_own" ON public.dictionary
+  FOR ALL USING (user_id = auth.uid()) WITH CHECK (user_id = auth.uid());
+
+CREATE POLICY "memo_tags_own" ON public.memo_tags
+  FOR ALL USING (user_id = auth.uid()) WITH CHECK (user_id = auth.uid());
+
+CREATE POLICY "daily_usage_read_own" ON public.daily_usage
+  FOR SELECT USING (user_id = auth.uid());
+
+-- daily_usage INSERT/UPDATE는 Edge Function(service role)만 수행
+-- 일반 유저는 읽기만 가능
+
+-- ============================================================================
+-- subscriptions: 본인 읽기만. Stripe webhook이 service role로 쓰기
+-- ============================================================================
+CREATE POLICY "subscriptions_read_own" ON public.subscriptions
+  FOR SELECT USING (user_id = auth.uid());
diff --git a/server/supabase/migrations/20260409000003_auth_triggers.sql b/server/supabase/migrations/20260409000003_auth_triggers.sql
new file mode 100644
index 0000000..2f2e6ec
--- /dev/null
+++ b/server/supabase/migrations/20260409000003_auth_triggers.sql
@@ -0,0 +1,120 @@
+-- ============================================================================
+-- Phase V2-2: Auth 트리거 + updated_at 자동 갱신
+-- ============================================================================
+
+-- ============================================================================
+-- handle_new_user: auth.users → public.profiles + public.subscriptions 생성
+-- ============================================================================
+CREATE OR REPLACE FUNCTION public.handle_new_user()
+RETURNS trigger
+LANGUAGE plpgsql
+SECURITY DEFINER
+SET search_path = public
+AS $$
+BEGIN
+  INSERT INTO public.profiles (id, name, avatar_url, locale)
+  VALUES (
+    NEW.id,
+    COALESCE(
+      NEW.raw_user_meta_data->>'full_name',
+      NEW.raw_user_meta_data->>'name',
+      split_part(NEW.email, '@', 1)
+    ),
+    NEW.raw_user_meta_data->>'avatar_url',
+    COALESCE(NEW.raw_user_meta_data->>'locale', 'ko')
+  );
+
+  INSERT INTO public.subscriptions (user_id, tier, status)
+  VALUES (NEW.id, 'free', 'active');
+
+  RETURN NEW;
+END;
+$$;
+
+CREATE TRIGGER on_auth_user_created
+  AFTER INSERT ON auth.users
+  FOR EACH ROW EXECUTE FUNCTION public.handle_new_user();
+
+-- ============================================================================
+-- handle_user_deleted: auth.users 삭제 시 cleanup
+-- (FK CASCADE로 자동이지만 추가 정리 지점으로 남겨둠)
+-- ============================================================================
+-- 현재는 FK CASCADE에 의존, 필요 시 확장.
+
+-- ============================================================================
+-- moddatetime: updated_at 자동 갱신 트리거 함수
+-- ============================================================================
+CREATE OR REPLACE FUNCTION public.moddatetime()
+RETURNS trigger
+LANGUAGE plpgsql
+AS $$
+BEGIN
+  NEW.updated_at = now();
+  RETURN NEW;
+END;
+$$;
+
+-- 각 테이블에 트리거 부착 ----------------------------------------------------
+CREATE TRIGGER set_updated_at_profiles
+  BEFORE UPDATE ON public.profiles
+  FOR EACH ROW EXECUTE FUNCTION public.moddatetime();
+
+CREATE TRIGGER set_updated_at_teams
+  BEFORE UPDATE ON public.teams
+  FOR EACH ROW EXECUTE FUNCTION public.moddatetime();
+
+CREATE TRIGGER set_updated_at_meetings
+  BEFORE UPDATE ON public.meetings
+  FOR EACH ROW EXECUTE FUNCTION public.moddatetime();
+
+CREATE TRIGGER set_updated_at_meeting_documents
+  BEFORE UPDATE ON public.meeting_documents
+  FOR EACH ROW EXECUTE FUNCTION public.moddatetime();
+
+CREATE TRIGGER set_updated_at_transcripts
+  BEFORE UPDATE ON public.transcripts
+  FOR EACH ROW EXECUTE FUNCTION public.moddatetime();
+
+CREATE TRIGGER set_updated_at_history
+  BEFORE UPDATE ON public.history
+  FOR EACH ROW EXECUTE FUNCTION public.moddatetime();
+
+CREATE TRIGGER set_updated_at_dictionary
+  BEFORE UPDATE ON public.dictionary
+  FOR EACH ROW EXECUTE FUNCTION public.moddatetime();
+
+CREATE TRIGGER set_updated_at_subscriptions
+  BEFORE UPDATE ON public.subscriptions
+  FOR EACH ROW EXECUTE FUNCTION public.moddatetime();
+
+-- ============================================================================
+-- increment_daily_usage: Edge Function에서 호출하는 쿼터 증가 헬퍼
+-- service_role 전용 (SECURITY DEFINER)
+-- ============================================================================
+CREATE OR REPLACE FUNCTION public.increment_daily_usage(
+  p_user_id uuid,
+  p_feature text,
+  p_amount integer DEFAULT 1
+)
+RETURNS integer
+LANGUAGE plpgsql
+SECURITY DEFINER
+SET search_path = public
+AS $$
+DECLARE
+  v_new_count integer;
+BEGIN
+  INSERT INTO public.daily_usage (user_id, date, feature, count)
+  VALUES (p_user_id, CURRENT_DATE, p_feature, p_amount)
+  ON CONFLICT (user_id, date, feature)
+  DO UPDATE SET count = public.daily_usage.count + p_amount
+  RETURNING count INTO v_new_count;
+
+  RETURN v_new_count;
+END;
+$$;
+
+-- 일반 유저는 호출 불가, service_role만 허용
+REVOKE ALL ON FUNCTION public.increment_daily_usage FROM PUBLIC;
+REVOKE ALL ON FUNCTION public.increment_daily_usage FROM authenticated;
+GRANT EXECUTE ON FUNCTION public.increment_daily_usage TO service_role;
diff --git a/server/supabase/migrations/20260409000004_storage_buckets.sql b/server/supabase/migrations/20260409000004_storage_buckets.sql
new file mode 100644
index 0000000..e5bc7be
--- /dev/null
+++ b/server/supabase/migrations/20260409000004_storage_buckets.sql
@@ -0,0 +1,83 @@
+-- ============================================================================
+-- Phase V2-2: Storage 버킷 + 접근 정책
+-- ============================================================================
+
+-- 버킷 생성 ------------------------------------------------------------------
+INSERT INTO storage.buckets (id, name, public, file_size_limit, allowed_mime_types)
+VALUES
+  ('audio', 'audio', false, 524288000, ARRAY['audio/wav', 'audio/webm', 'audio/mpeg', 'audio/mp4', 'audio/ogg']),
+  ('exports', 'exports', false, 52428800, ARRAY['application/pdf', 'application/vnd.openxmlformats-officedocument.wordprocessingml.document', 'text/markdown', 'text/html']),
+  ('avatars', 'avatars', true, 5242880, ARRAY['image/jpeg', 'image/png', 'image/webp'])
+ON CONFLICT (id) DO NOTHING;
+
+-- ============================================================================
+-- audio 버킷: 본인 경로 ({user_id}/...) 에서만 읽기/쓰기
+-- ============================================================================
+CREATE POLICY "audio_read_own" ON storage.objects
+  FOR SELECT USING (
+    bucket_id = 'audio'
+    AND auth.uid()::text = (storage.foldername(name))[1]
+  );
+
+CREATE POLICY "audio_insert_own" ON storage.objects
+  FOR INSERT WITH CHECK (
+    bucket_id = 'audio'
+    AND auth.uid()::text = (storage.foldername(name))[1]
+  );
+
+CREATE POLICY "audio_update_own" ON storage.objects
+  FOR UPDATE USING (
+    bucket_id = 'audio'
+    AND auth.uid()::text = (storage.foldername(name))[1]
+  );
+
+CREATE POLICY "audio_delete_own" ON storage.objects
+  FOR DELETE USING (
+    bucket_id = 'audio'
+    AND auth.uid()::text = (storage.foldername(name))[1]
+  );
+
+-- ============================================================================
+-- exports 버킷: 동일 패턴
+-- ============================================================================
+CREATE POLICY "exports_read_own" ON storage.objects
+  FOR SELECT USING (
+    bucket_id = 'exports'
+    AND auth.uid()::text = (storage.foldername(name))[1]
+  );
+
+CREATE POLICY "exports_insert_own" ON storage.objects
+  FOR INSERT WITH CHECK (
+    bucket_id = 'exports'
+    AND auth.uid()::text = (storage.foldername(name))[1]
+  );
+
+CREATE POLICY "exports_delete_own" ON storage.objects
+  FOR DELETE USING (
+    bucket_id = 'exports'
+    AND auth.uid()::text = (storage.foldername(name))[1]
+  );
+
+-- ============================================================================
+-- avatars 버킷: 공개 읽기, 본인만 쓰기
+-- ============================================================================
+CREATE POLICY "avatars_read_public" ON storage.objects
+  FOR SELECT USING (bucket_id = 'avatars');
+
+CREATE POLICY "avatars_insert_own" ON storage.objects
+  FOR INSERT WITH CHECK (
+    bucket_id = 'avatars'
+    AND auth.uid()::text = (storage.foldername(name))[1]
+  );
+
+CREATE POLICY "avatars_update_own" ON storage.objects
+  FOR UPDATE USING (
+    bucket_id = 'avatars'
+    AND auth.uid()::text = (storage.foldername(name))[1]
+  );
+
+CREATE POLICY "avatars_delete_own" ON storage.objects
+  FOR DELETE USING (
+    bucket_id = 'avatars'
+    AND auth.uid()::text = (storage.foldername(name))[1]
+  );
diff --git a/server/supabase/seed.sql b/server/supabase/seed.sql
new file mode 100644
index 0000000..4aae0af
--- /dev/null
+++ b/server/supabase/seed.sql
@@ -0,0 +1,10 @@
+-- ============================================================================
+-- Phase V2-2: 개발 시드 데이터
+-- 로컬 supabase 실행 시 `supabase db reset`으로 자동 적용.
+-- 프로덕션 배포에는 사용되지 않음.
+-- ============================================================================
+
+-- 테스트 유저는 supabase/cli로 생성하거나 studio에서 수동 생성.
+-- 여기서는 테이블 구조 확인용 더미 레퍼런스만.
+
+-- (향후 개발 데이터 추가 예정)