Fix database seeding, add security and complete missing endpoints

src/main/resources/application.yml

@@ -8,6 +8,13 @@ spring:
     password: ${SPRING_DATASOURCE_PASSWORD:petshop}
     driver-class-name: com.mysql.cj.jdbc.Driver
 
+  sql:
+    init:
+      mode: always
+      schema-locations: classpath:schema.sql
+      data-locations: classpath:data.sql
+      continue-on-error: false
+
   jpa:
     hibernate:
       ddl-auto: validate