diff --git a/.coderabbit.yaml b/.coderabbit.yaml
new file mode 100644
index 00000000..4edd2210
--- /dev/null
+++ b/.coderabbit.yaml
@@ -0,0 +1,54 @@
+# ---------------------------------------------------------------- #
+# CodeRabbit AI 설정
+# ---------------------------------------------------------------- #
+
+# 응답 기본 언어 설정
+language: "ko-KR"
+
+# AI 페르소나 및 톤앤매너 지시
+tone_instructions: >
+  1. 피드백은 명확하고 구체적이어야 하며, 문제의 원인과 개선 방법을 반드시 제시하세요.
+  2. 리뷰는 교육적이어야 하며, 관련 개념이나 공식 문서를 함께 추천하세요.
+  3. 비판보다는 개선 중심의 제안을 우선하세요.
+  4. 칭찬은 짧고 위트 있게 작성하세요.
+
+# ---------------------------------------------------------------- #
+# 코드 리뷰 기능 세부 설정
+# ---------------------------------------------------------------- #
+reviews:
+  profile: "chill"                  # 리뷰 전반 스타일 (부드러운 톤)
+  request_changes_workflow: false   # 코멘트 resolve 시 자동 Approve 처리
+  high_level_summary: true          # PR 변경 사항 고수준 요약 활성화
+  collapse_walkthrough: true        # 워크스루 코멘트 접기 활성화
+  changed_files_summary: true       # 변경된 파일별 요약 생성
+  sequence_diagrams: true           # 실행 흐름 시퀀스 다이어그램 생성
+  assess_linked_issues: true        # 연결된 이슈 분석 컨텍스트 활용
+  related_issues: false             # 연관 다른 이슈 링크 비활성화
+  related_prs: true                 # 연관 다른 PR 링크 활성화
+  suggested_labels: false           # 적절한 레이블 제안 비활성화
+  auto_apply_labels: false          # 제안 레이블 자동 적용 비활성화
+  suggested_reviewers: false        # 동료 리뷰어 추천 비활성화
+  auto_assign_reviewers: false      # 추천 리뷰어 자동 할당 비활성화
+  poem: true                        # 리뷰 요약에 위트 있는 시 포함 활성화
+
+  # ---------------------------------------------------------------- #
+  # 자동 리뷰 트리거 설정
+  # ---------------------------------------------------------------- #
+  auto_review:
+    enabled: true
+    auto_incremental_review: true   # 추가 커밋 시 변경된 부분만 자동 리뷰
+
+# ---------------------------------------------------------------- #
+# 채팅 기능 설정
+# ---------------------------------------------------------------- #
+chat:
+  auto_reply: true                  # 태그하지 않아도 자동 답글 활성화
+
+# ---------------------------------------------------------------- #
+# CodeRabbit의 지식 기반(Knowledge Base) 설정
+# ---------------------------------------------------------------- #
+knowledge_base:
+  web_search:
+    enabled: true                   # 최신 문서 검색 허용
+  code_guidelines:
+    enabled: true
\ No newline at end of file
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..dd6d9897
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,10 @@
+# Git이 알아서 OS에 맞게 줄바꿈을 변환해 주도록 강제
+* text=auto
+
+# 윈도우 배치 파일은 무조건 CRLF로 고정
+*.bat text eol=crlf
+*.cmd text eol=crlf
+
+# 리눅스/맥용 셸 스크립트는 무조건 LF로 고정
+gradlew text eol=lf
+*.sh text eol=lf
\ No newline at end of file
diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
new file mode 100644
index 00000000..46cec6d5
--- /dev/null
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -0,0 +1,30 @@
+## 📍 개요
+<!-- 어떤 주제인지 요약 -->
+> 소셜 로그인 구현
+
+### ⛓️‍💥 관련 이슈
+<!-- 관련 이슈 번호 -->
+- Closes #이슈번호
+
+---
+### 🛠️ 작업 내용
+<!-- 무엇을 변경했는지 핵심 내용 요약 -->
+- 소셜 로그인 API 추가
+
+---
+### 🔥 리뷰 요청 사항
+> 리뷰어가 중점적으로 확인해주었으면 하는 내용을 작성해주세요.
+
+- 예외 코드 처리 방식
+
+---
+### ✅ 체크리스트
+
+* [ ] 코드 컨벤션을 준수했습니다.
+* [ ] 불필요한 코드 및 import를 제거했습니다.
+* [ ] 예외 처리를 적용했습니다.
+* [ ] 테스트를 완료했습니다.
+* [ ] 관련 Issue를 연결했습니다.
+
+---
+### 📎 참고 사항
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..8e1ef4fc
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,53 @@
+# ================================================================= #
+# Git ignore for Spring Boot / Java / Gradle / IntelliJ (Muse Review)
+# ================================================================= #
+
+HELP.md
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/resources/gradle/wrapper/gradle-wrapper.jar
+!**/src/test/resources/gradle/wrapper/gradle-wrapper.jar
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+out/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Operating System ###
+.DS_Store
+Thumbs.db
+desktop.ini
+
+# 암호키 및 보안 인증서 관련 파일
+*.key
+*.pem
+*.jks
+
+
+MR_config/*
+
+MR_config/local/*
+
+!MR_config/local/application.example.yml
\ No newline at end of file
diff --git a/MR_config/local/application.example.yml b/MR_config/local/application.example.yml
new file mode 100644
index 00000000..3dd38451
--- /dev/null
+++ b/MR_config/local/application.example.yml
@@ -0,0 +1,42 @@
+# ================================================================= #
+# 🔒 [NOTICE] 본 파일은 로컬 환경 세팅용 '공통 예시 파일'입니다.
+# 각자 로컬 PC 사양에 맞게 정보를 입력한 후, 파일 이름을
+# 'application.yml'로 변경하여 동일한 경로에 위치시켜 주세요!
+# ================================================================= #
+
+spring:
+  # 1. 로컬 데이터베이스 커넥션 설정 (PostgreSQL 18)
+  datasource:
+    driver-class-name: org.postgresql.Driver
+    url: jdbc:postgresql://localhost:5432/mr_db # [체크] 로컬에 mr_db 빈 데이터베이스를 먼저 생성
+    username: postgres                          # [입력] PostgreSQL 계정명
+    password: ""                                # [입력] PostgreSQL 비밀번호 (빈값 입력 가능)
+
+  # 2. JPA 및 하이버네이트 구동 설정
+  jpa:
+    hibernate:
+      ddl-auto: update # 엔티티 매핑 정보 변경 시 DB 테이블 자동 반영
+    show-sql: true     # 콘솔에 실행 SQL 포맷 출력
+    properties:
+      hibernate:
+        format_sql: true
+        dialect: org.hibernate.dialect.PostgreSQLDialect
+
+# 3. Spring Security 및 JWT 인증 설정
+jwt:
+  # [입력] HS256 알고리즘을 충족하는 256비트(32바이트) 이상의 임의의 비밀키를 채워주세요.
+  # 기입 예시: "your-local-custom-secret-key-must-be-very-long-and-secure-32bytes"
+  secret: ""
+  access-token-validity-in-seconds: 1800     # Access Token 만료 시간 (30분)
+  refresh-token-validity-in-seconds: 604800  # Refresh Token 만료 시간 (7일)
+
+# 4. 외부 소셜 로그인 API 연동 정보 (OAuth용)
+oauth:
+  kakao:
+    client-id: ""     # [입력] 카카오 디벨로퍼스 REST API 키
+    client-secret: "" # [입력] 카카오 보안 Client Secret 키
+    redirect-uri: http://localhost:8080/login/oauth2/code/kakao
+  google:
+    client-id: ""     # [입력] 구글 클라우드 콘솔 OAuth 클라이언트 ID
+    client-secret: "" # [입력] 구글 클라우드 콘솔 보안 비밀번호
+    redirect-uri: http://localhost:8080/login/oauth2/code/google
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 00000000..9070c994
--- /dev/null
+++ b/README.md
@@ -0,0 +1,71 @@
+# 🎵 Muse Review - Backend
+
+> **뮤즈리뷰 백엔드 개발 팀 공통 컨벤션 및 가이드북입니다.** > 모든 팀원은 원활한 협업을 위해 아래 규칙을 반드시 준수해 주세요!
+
+---
+
+## 🌿 1. 브랜치 전략 (Git Flow)
+
+우리 팀은 안정적인 배포와 독립적인 기능 개발을 위해 브랜치를 분리하여 관리합니다.
+
+* 🔵 **`main`** : 항상 배포 가능한 상태를 유지하는 운영 브랜치 (직접 작업 금지, PR 머지만 허용)
+* 🟢 **`develop`** : 다음 배포를 준비하는 통합 개발 브랜치 (모든 기능 개발본이 모이는 곳)
+* 🟡 **`기능 브랜치`** : 기능/이슈 단위로 `develop`에서 파생하여 개발하는 브랜치
+
+### 📌 Branch Naming Convention
+* **구조:** `Prefix/#이슈번호-작업내용` (Kebab Case 사용)
+* **예시:** `feat/#10-login-api`, `chore/#1-setting-base`
+
+| Prefix | 설명 | 사용 예시 |
+| :--- | :--- | :--- |
+| `feat` | 새로운 기능 추가 | `feat/#10-login-api` |
+| `fix` | 버그 수정 | `fix/#23-header-layout` |
+| `docs` | 문서 수정 (README 등) | `docs/#5-update-readme` |
+| `style` | 코드 포맷팅 (로직 변경 없음) | `style/#12-format-code` |
+| `refactor`| 코드 리팩토링 | `refactor/#30-user-service` |
+| `chore` | 설정 파일 변경, 패키지 빌드 등 | `chore/#1-setting-base` |
+
+---
+
+## 📝 2. 커밋 컨벤션 (Commit Convention)
+
+* **메시지 구조:** `타입: 작업 내용 (#이슈번호)` 형식으로 작성 (제목은 50자 이내 소문자 태그 권장)
+* **예시:** `feat: 카카오 소셜 로그인 API 추가 (#10)`
+
+### 🔓 PR 머지 및 코드 리뷰 규칙
+* **PR 머지 조건:** 활발한 코드 리뷰를 위해 **최소 2명 이상의 승인(Approve)**이 있어야 머지 가능
+* **리뷰 태그 가이드:**
+    * `P1`: 꼭 반영해 주세요 (중대한 오류 가능성, Request Changes 필수)
+    * `P2`: 적극적으로 고려해 주세요 (토큰/논의 권장)
+    * `P3`: 웬만하면 반영해 주세요 / 가벼운 의견 (Comment 처리)
+
+---
+
+## 🛠️ 3. 개발 환경 및 코드 컨벤션
+
+### 💻 Tech Stack
+* **Language & Framework:** Java 17 / Spring Boot 3.2.2
+* **Database:** PostgreSQL 18 / JPA
+
+### 🎨 Code Style (Spring JavaFormat)
+우리 프로젝트는 `Spring JavaFormat` 플러그인을 사용하여 공통 포맷을 강제합니다. 빌드 시 포맷이 맞지 않으면 컴파일이 실패할 수 있습니다.
+* **클래스명:** `PascalCase` (`class AuthController`)
+* **변수/메서드명:** `camelCase` (`String accessToken`)
+* **상수명:** `UPPER_SNAKE_CASE` (`int MAX_LIMIT = 3`)
+* ⚠️ **주의:** 변수 및 메서드명에 언더바(`_`) 사용을 금지합니다.
+
+---
+
+## 🔒 4. 로컬 환경 세팅 (민감 정보 보호)
+
+민감 정보(DB 패스워드, JWT Secret, OAuth Key) 유출 방지를 위해 `MR_config` 안전 금고 시스템을 사용합니다.
+
+1. 로컬 PostgreSQL에 `mr_db` 데이터베이스를 생성합니다.
+2. 프로젝트 루트에 `MR_config/local/` 폴더를 생성합니다.
+3. 공유된 `application.example.yml` 파일을 해당 폴더에 복사한 뒤, 파일명을 **`application.yml`**로 변경합니다.
+4. 본인의 로컬 DB 비밀번호와 개인 API Key를 입력한 후 서버를 구동합니다.
+
+### 🚀 로컬 빌드 명령어
+* **Windows PowerShell:** `./gradlew.bat build -x test`
+* **Git Bash / Mac:** `./gradlew build -x test`
+* **Swagger UI 주소:** `http://localhost:8080/swagger-ui/index.html`
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
new file mode 100644
index 00000000..1002a12e
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,76 @@
+plugins {
+    id 'java'
+    id 'org.springframework.boot' version '3.2.2'
+    id 'io.spring.dependency-management' version '1.1.7'
+    // formater
+    id 'io.spring.javaformat' version '0.0.41'
+}
+
+group = 'com.mr'
+version = '0.0.1-SNAPSHOT'
+
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(17)
+    }
+}
+
+configurations {
+    compileOnly {
+        extendsFrom annotationProcessor
+    }
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation 'org.springframework.boot:spring-boot-starter-web'
+    implementation 'org.springframework.boot:spring-boot-starter-validation'
+
+    // Swagger
+    implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.3.0'
+
+    // JWT
+    implementation 'org.springframework.boot:spring-boot-starter-security'
+    implementation 'io.jsonwebtoken:jjwt-api:0.11.5'
+    runtimeOnly 'io.jsonwebtoken:jjwt-impl:0.11.5'
+    runtimeOnly 'io.jsonwebtoken:jjwt-jackson:0.11.5'
+
+    // PostgreSQL 18, JPA
+    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
+    runtimeOnly 'org.postgresql:postgresql'
+
+    // Lombok   , DevTools
+    compileOnly 'org.projectlombok:lombok'
+    annotationProcessor 'org.projectlombok:lombok'
+    developmentOnly 'org.springframework.boot:spring-boot-devtools'
+
+    // Health Check
+    implementation 'org.springframework.boot:spring-boot-starter-actuator'
+
+    testImplementation 'org.springframework.boot:spring-boot-starter-test'
+    testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+}
+
+test {
+    useJUnitPlatform()
+}
+
+// Private Config Copy
+tasks.register('copyPrivateConfig', Copy) {
+    def envDir = file('./MR_config/local')
+
+    if (!envDir.exists()) {
+        envDir.mkdirs()
+        file('./MR_config/local/application.yml').text = "# 이 경로에 복사한 로컬 설정을 채워 넣어 주세요!"
+    }
+
+    from './MR_config/local'
+    into 'src/main/resources'
+}
+
+tasks.named('processResources') {
+    dependsOn 'copyPrivateConfig'
+}
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 00000000..8bdaf60c
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 00000000..2a84e188
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.0.0-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
new file mode 100644
index 00000000..ef07e016
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,251 @@
+#!/bin/sh
+
+#
+# Copyright © 2015 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH="\\\"\\\""
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 00000000..db3a6ac2
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,94 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/settings.gradle b/settings.gradle
new file mode 100644
index 00000000..7649b1cb
--- /dev/null
+++ b/settings.gradle
@@ -0,0 +1 @@
+rootProject.name = 'mr'
diff --git a/src/main/java/com.mr/Application.java b/src/main/java/com.mr/Application.java
new file mode 100644
index 00000000..11783c70
--- /dev/null
+++ b/src/main/java/com.mr/Application.java
@@ -0,0 +1,13 @@
+package com.mr;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+
+}
\ No newline at end of file
diff --git a/src/main/java/com.mr/global/apipayload/ApiResponse.java b/src/main/java/com.mr/global/apipayload/ApiResponse.java
new file mode 100644
index 00000000..fb67124f
--- /dev/null
+++ b/src/main/java/com.mr/global/apipayload/ApiResponse.java
@@ -0,0 +1,22 @@
+package com.mr.global.apipayload;
+
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+import com.mr.global.apipayload.code.CommonStatus;
+
+@JsonPropertyOrder({"isSuccess", "code", "message", "data"})
+public record ApiResponse<T>(
+        boolean isSuccess,
+        String code,
+        String message,
+        T data
+) {
+    // 성공
+    public static <T> ApiResponse<T> onSuccess(T data) {
+        return new ApiResponse<>(true, CommonStatus.SUCCESS.getCode(), CommonStatus.SUCCESS.getMessage(), data);
+    }
+
+    // 실패
+    public static <T> ApiResponse<T> onFailure(String code, String message, T data) {
+        return new ApiResponse<>(false, code, message, data);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com.mr/global/apipayload/code/BaseCode.java b/src/main/java/com.mr/global/apipayload/code/BaseCode.java
new file mode 100644
index 00000000..3ea7e460
--- /dev/null
+++ b/src/main/java/com.mr/global/apipayload/code/BaseCode.java
@@ -0,0 +1,9 @@
+package com.mr.global.apipayload.code;
+
+import org.springframework.http.HttpStatus;
+
+public interface BaseCode {
+    HttpStatus getStatus();
+    String getCode();
+    String getMessage();
+}
\ No newline at end of file
diff --git a/src/main/java/com.mr/global/apipayload/code/CommonStatus.java b/src/main/java/com.mr/global/apipayload/code/CommonStatus.java
new file mode 100644
index 00000000..25d78bdc
--- /dev/null
+++ b/src/main/java/com.mr/global/apipayload/code/CommonStatus.java
@@ -0,0 +1,20 @@
+package com.mr.global.apipayload.code;
+
+import org.springframework.http.HttpStatus;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public enum CommonStatus implements BaseCode {
+
+    // 공통 성공 / 실패
+    SUCCESS(HttpStatus.OK, "COMMON_200", "요청에 성공하였습니다."),
+    INVALID_INPUT_VALUE(HttpStatus.BAD_REQUEST, "COMMON_400_01", "입력값이 올바르지 않습니다."),
+    HTTP_MESSAGE_NOT_READABLE(HttpStatus.BAD_REQUEST, "COMMON_400_02", "요청 본문(JSON) 파싱에 실패했습니다."),
+    INTERNAL_SERVER_ERROR(HttpStatus.INTERNAL_SERVER_ERROR, "COMMON_500_01", "서버 에러가 발생했습니다.");
+
+    private final HttpStatus status;
+    private final String code;
+    private final String message;
+}
\ No newline at end of file
diff --git a/src/main/java/com.mr/global/apipayload/code/StatusReasonDTO.java b/src/main/java/com.mr/global/apipayload/code/StatusReasonDTO.java
new file mode 100644
index 00000000..67ebb734
--- /dev/null
+++ b/src/main/java/com.mr/global/apipayload/code/StatusReasonDTO.java
@@ -0,0 +1,10 @@
+package com.mr.global.apipayload.code;
+
+import org.springframework.http.HttpStatus;
+
+public record StatusReasonDTO(
+        HttpStatus status,
+        boolean isSuccess,
+        String code,
+        String message
+) {}
\ No newline at end of file
diff --git a/src/main/java/com.mr/global/apipayload/domain/AuthErrorStatus.java b/src/main/java/com.mr/global/apipayload/domain/AuthErrorStatus.java
new file mode 100644
index 00000000..f78da427
--- /dev/null
+++ b/src/main/java/com.mr/global/apipayload/domain/AuthErrorStatus.java
@@ -0,0 +1,20 @@
+package com.mr.global.apipayload.domain;
+
+import com.mr.global.apipayload.code.BaseCode;
+import org.springframework.http.HttpStatus;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public enum AuthErrorStatus implements BaseCode {
+
+    // 예원님 도메인 에러코드 컨벤션 적용
+    TOKEN_MISSING(HttpStatus.BAD_REQUEST, "AUTH_400_07", "토큰 값이 필요합니다."),
+    INVALID_TOKEN(HttpStatus.UNAUTHORIZED, "AUTH_401_01", "유효하지 않은 토큰입니다."),
+    EXPIRED_TOKEN(HttpStatus.UNAUTHORIZED, "AUTH_401_02", "만료된 토큰입니다.");
+
+    private final HttpStatus status;
+    private final String code;
+    private final String message;
+}
\ No newline at end of file
diff --git a/src/main/java/com.mr/global/apipayload/exception/GeneralException.java b/src/main/java/com.mr/global/apipayload/exception/GeneralException.java
new file mode 100644
index 00000000..ee390f6e
--- /dev/null
+++ b/src/main/java/com.mr/global/apipayload/exception/GeneralException.java
@@ -0,0 +1,20 @@
+package com.mr.global.apipayload.exception;
+
+import com.mr.global.apipayload.code.BaseCode;
+import com.mr.global.apipayload.code.StatusReasonDTO;
+import lombok.Getter;
+
+@Getter
+public class GeneralException extends RuntimeException {
+
+    private final BaseCode code;
+
+    public GeneralException(BaseCode code) {
+        super(code.getMessage());
+        this.code = code;
+    }
+
+    public StatusReasonDTO getErrorReason() {
+        return new StatusReasonDTO(this.code.getStatus(), false, this.code.getCode(), this.code.getMessage());
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com.mr/global/apipayload/handler/GlobalExceptionHandler.java b/src/main/java/com.mr/global/apipayload/handler/GlobalExceptionHandler.java
new file mode 100644
index 00000000..4a0614f2
--- /dev/null
+++ b/src/main/java/com.mr/global/apipayload/handler/GlobalExceptionHandler.java
@@ -0,0 +1,68 @@
+package com.mr.global.apipayload.handler;
+
+import com.mr.global.apipayload.ApiResponse;
+import com.mr.global.apipayload.code.CommonStatus;
+import com.mr.global.apipayload.exception.GeneralException;
+import jakarta.validation.ConstraintViolationException;
+import java.util.stream.Collectors;
+import org.springframework.http.ResponseEntity;
+import org.springframework.http.converter.HttpMessageNotReadableException;
+import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+@RestControllerAdvice
+public class GlobalExceptionHandler {
+
+    // 커스텀 예외
+    @ExceptionHandler(GeneralException.class)
+    public ResponseEntity<ApiResponse<Object>> handleGeneralException(GeneralException e) {
+        var reason = e.getErrorReason();
+        ApiResponse<Object> response = ApiResponse.onFailure(reason.code(), reason.message(), null);
+        return new ResponseEntity<>(response, reason.status());
+    }
+
+    // @Valid 검증 실패 예외
+    @ExceptionHandler(MethodArgumentNotValidException.class)
+    public ResponseEntity<ApiResponse<Object>> handleMethodArgumentNotValidException(MethodArgumentNotValidException e) {
+        var status = CommonStatus.INVALID_INPUT_VALUE;
+        var errors = e.getBindingResult().getFieldErrors().stream()
+                .collect(Collectors.toMap(
+                        error -> error.getField(),
+                        error -> error.getDefaultMessage() != null ? error.getDefaultMessage() : "올바르지 않은 형식입니다.",
+                        (existing, replacement) -> existing
+                ));
+        ApiResponse<Object> response = ApiResponse.onFailure(status.getCode(), status.getMessage(), errors);
+        return new ResponseEntity<>(response, status.getStatus());
+    }
+
+    // JSON 파싱 에러
+    @ExceptionHandler(HttpMessageNotReadableException.class)
+    public ResponseEntity<ApiResponse<Object>> handleHttpMessageNotReadableException(HttpMessageNotReadableException e) {
+        var status = CommonStatus.HTTP_MESSAGE_NOT_READABLE;
+        ApiResponse<Object> response = ApiResponse.onFailure(status.getCode(), status.getMessage(), null);
+        return new ResponseEntity<>(response, status.getStatus());
+    }
+
+    // 파라미터 제약 조건 위반 예외
+    @ExceptionHandler(ConstraintViolationException.class)
+    public ResponseEntity<ApiResponse<Object>> handleConstraintViolationException(ConstraintViolationException e) {
+        var status = CommonStatus.INVALID_INPUT_VALUE;
+        var errors = e.getConstraintViolations().stream()
+                .collect(Collectors.toMap(
+                        violation -> violation.getPropertyPath().toString(),
+                        violation -> violation.getMessage(),
+                        (existing, replacement) -> existing
+                ));
+        ApiResponse<Object> response = ApiResponse.onFailure(status.getCode(), status.getMessage(), errors);
+        return new ResponseEntity<>(response, status.getStatus());
+    }
+
+    // 그 외  전체 서버 에러 처리
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<ApiResponse<Object>> handleAllException(Exception e) {
+        var status = CommonStatus.INTERNAL_SERVER_ERROR;
+        ApiResponse<Object> response = ApiResponse.onFailure(status.getCode(), status.getMessage(), null);
+        return new ResponseEntity<>(response, status.getStatus());
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com.mr/global/config/SecurityConfig.java b/src/main/java/com.mr/global/config/SecurityConfig.java
new file mode 100644
index 00000000..7993a7ae
--- /dev/null
+++ b/src/main/java/com.mr/global/config/SecurityConfig.java
@@ -0,0 +1,30 @@
+package com.mr.global.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+import org.springframework.security.web.SecurityFilterChain;
+
+@Configuration
+@EnableWebSecurity
+public class SecurityConfig {
+
+    @Bean
+    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
+        http
+                .csrf(csrf -> {
+                    try {
+                        http.csrf(csrfSpec -> csrfSpec.disable());
+                    } catch (Exception e) {
+                        throw new RuntimeException(e);
+                    }
+                }) // CSRF 해제
+                .authorizeHttpRequests(auth -> auth
+                        // Swagger
+                        .requestMatchers("/swagger-ui/**", "/v3/api-docs/**").permitAll()
+                        .anyRequest().authenticated()
+                );
+        return http.build();
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com.mr/global/file/FileCategory.java b/src/main/java/com.mr/global/file/FileCategory.java
new file mode 100644
index 00000000..e69de29b
diff --git a/src/main/java/com.mr/global/file/FileException.java b/src/main/java/com.mr/global/file/FileException.java
new file mode 100644
index 00000000..e69de29b
diff --git a/src/main/java/com.mr/global/file/S3Config.java b/src/main/java/com.mr/global/file/S3Config.java
new file mode 100644
index 00000000..e69de29b
diff --git a/src/main/java/com.mr/global/file/S3Service.java b/src/main/java/com.mr/global/file/S3Service.java
new file mode 100644
index 00000000..e69de29b