Add database integration and initial member table setup

Added dependencies for MySQL and Flyway in `build.gradle`. Configured MySQL connection and Flyway settings in `application.yml`. Included an initial migration script to create the `member` table with unique constraints. Replaced `application.properties` with `application.yml`.

Author: Ahn-JoonHun

.idea/modules.xml

@@ -29,6 +29,13 @@ dependencies {
     developmentOnly 'org.springframework.boot:spring-boot-devtools'
     annotationProcessor 'org.springframework.boot:spring-boot-configuration-processor'
     annotationProcessor 'org.projectlombok:lombok'
+
+    implementation 'com.mysql:mysql-connector-j:9.2.0'
+    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
+    implementation 'org.flywaydb:flyway-core:11.3.1'
+    implementation 'org.flywaydb:flyway-mysql:11.3.1'
+
+
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
     testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
 }

spring-boot/build.gradle

@@ -1,7 +1,7 @@
 version: '3.8'
 services:
   template:
-    image: mysql:latest
+    image: mysql:9.2.0
 
     # 애플 실리콘 맥을 사용하는 경우 아래 platform 을 주석처리 해제
     # platform: linux/amd64

spring-boot/docker-compose.yaml

@@ -0,0 +1,21 @@
+spring:
+  datasource:
+    url: jdbc:mysql://localhost:3306/template?serverTimezone=UTC&useSSL=false&allowPublicKeyRetrieval=true
+    username: root
+    password: test1234
+    driver-class-name: com.mysql.cj.jdbc.Driver
+
+  jpa:
+    database-platform: org.hibernate.dialect.MySQL8Dialect
+    database: mysql
+    hibernate:
+      ddl-auto: update
+    show-sql: true
+    properties:
+      hibernate.format_sql: true
+
+
+  flyway:
+    enabled: true
+    baseline-on-migrate: true
+    locations: classpath:db/migration

spring-boot/src/main/resources/application.properties

@@ -0,0 +1,7 @@
+    create table member (
+        member_key int auto_increment primary key,
+        member_code varchar(50) not null,
+        first_name varchar(50) not null,
+        last_name varchar(50) not null,
+        constraint unique_member_code unique (member_code)
+    );