Feature/hu 101/backend for frontend

auth-backend-service/.gitattributes

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+/gradlew text eol=lf
+*.bat text eol=crlf
+*.jar binary

auth-backend-service/.gitignore

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+HELP.md
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/

auth-backend-service/build.gradle

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+plugins {
+    id 'java'
+    id 'org.springframework.boot' version '3.5.0'
+    id 'io.spring.dependency-management' version '1.1.7'
+    id 'jacoco'
+}
+
+group = 'com.aws'
+version = '0.0.1-SNAPSHOT'
+
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(21)
+    }
+}
+
+configurations {
+    compileOnly {
+        extendsFrom annotationProcessor
+    }
+}
+
+repositories {
+    mavenCentral()
+}
+
+ext {
+    set('springCloudVersion', "2025.0.0")
+}
+
+dependencies {
+    implementation 'org.springframework.boot:spring-boot-starter-actuator'
+    implementation 'org.springframework.boot:spring-boot-starter-validation'
+    implementation 'org.springframework.boot:spring-boot-starter-webflux'
+    implementation 'org.springdoc:springdoc-openapi-starter-webflux-ui:2.7.0'
+    implementation 'org.springframework.cloud:spring-cloud-starter-circuitbreaker-reactor-resilience4j'
+    implementation 'org.springframework.boot:spring-boot-starter-oauth2-resource-server'
+    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'
+
+    // AWS SDK dependencies
+    implementation 'software.amazon.awssdk:auth'
+    implementation 'com.amazonaws:aws-java-sdk-dynamodb:1.12.658'
+    implementation 'software.amazon.awssdk:dynamodb:2.24.2'
+    implementation 'software.amazon.awssdk:dynamodb-enhanced:2.24.2'
+    implementation 'org.springframework.data:spring-data-commons:3.5.0'
+
+    implementation 'com.fasterxml.jackson.core:jackson-databind'
+    implementation 'com.fasterxml.jackson.core:jackson-core'
+    implementation 'com.fasterxml.jackson.core:jackson-annotations'
+
+    annotationProcessor 'org.projectlombok:lombok'
+    testImplementation 'org.springframework.boot:spring-boot-starter-test'
+    testImplementation 'org.mockito:mockito-core:5.12.0'
+    testImplementation 'org.mockito:mockito-junit-jupiter:5.12.0'
+    testImplementation 'io.projectreactor:reactor-test'
+    testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+}
+
+dependencyManagement {
+    imports {
+        mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
+    }
+}
+
+jacoco {
+    toolVersion = "0.8.10"
+}
+
+jacocoTestReport {
+    dependsOn test
+    reports {
+        xml.required = true
+        csv.required = false
+        html.outputLocation = layout.buildDirectory.dir("jacocoHtml")
+    }
+}
+
+jacocoTestCoverageVerification {
+    violationRules {
+        rule {
+            limit {
+                minimum = 0.80
+            }
+        }
+    }
+}
+
+check.dependsOn jacocoTestCoverageVerification
+
+tasks.named('test') {
+    useJUnitPlatform()
+}

auth-backend-service/gradle/wrapper/gradle-wrapper.properties

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+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.2-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists