refactor: replace Spring Boot with Jooby framework

- Remove Spring Boot dependencies and annotations.
- Implement Jooby MVC controllers and Guice dependency injection.
- Migrate persistence layer to Ebean ORM.
- Configure Flyway migrations and ApiErrorController.
- Update application configuration to HOCON format.

application/pom.xml

@@ -12,9 +12,18 @@
             <artifactId>domain</artifactId>
             <version>${project.version}</version>
         </dependency>
+
         <dependency>
             <groupId>jakarta.validation</groupId>
             <artifactId>jakarta.validation-api</artifactId>
+            <version>3.0.2</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.18.36</version>
+            <scope>provided</scope>
         </dependency>
     </dependencies>
 </project>