chore: schema 추가

Author: devjun10

app/src/main/resources/schema.sql

@@ -0,0 +1,9 @@
+CREATE TABLE user
+(
+    id               BIGINT PRIMARY KEY NOT NULL AUTO_INCREMENT COMMENT 'PK',
+    username         VARCHAR(40)        NOT NULL COMMENT '사용자 이름',
+    password         VARCHAR(255)       NOT NULL COMMENT '패스워드',
+    created_at       TIMESTAMP          NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '생성일',
+    last_modified_at TIMESTAMP          NULL     DEFAULT NULL COMMENT '최종 수정일',
+    deleted          VARCHAR(10)        NOT NULL COMMENT '삭제 유무'
+) engine 'InnoDB';