Implement tenant isolation for Entries Service: switch transaction handling to tenantTransaction, introduce Flyway-based migrations for tenant schemas, and add JdbcTenantRegistry with control schema support. Include migration tests, schema initializations, and E2E tenant isolation. Update configuration and roadmap with completed A-1 tasks.

backend/services/entries/entries-service/build.gradle.kts

@@ -24,6 +24,8 @@ dependencies {
   implementation(libs.bundles.spring.boot.secure.service)
   // Common service extras
   implementation(libs.spring.boot.starter.validation)
+  // JSON + Web: ensure Spring Web (incl. HttpMessageConverters) is on classpath
+  implementation("org.springframework.boot:spring-boot-starter-web")
   implementation(libs.spring.boot.starter.json)
   implementation(libs.postgresql.driver)
 
@@ -33,7 +35,9 @@ dependencies {
 
   implementation(libs.kotlin.reflect)
   implementation(libs.caffeine)
-  implementation(libs.spring.web)
+  // spring-web is included via spring-boot-starter-web above; keep explicit add if alias resolves elsewhere
+  // JDBC for JdbcTemplate-based TenantRegistry
+  implementation("org.springframework.boot:spring-boot-starter-jdbc")
 
   // Resilience Dependencies (manuell aufgelöst)
   implementation(libs.resilience4j.spring.boot3)
@@ -45,8 +49,12 @@ dependencies {
   implementation(libs.exposed.core)
   implementation(libs.exposed.jdbc)
   implementation(libs.exposed.kotlin.datetime)
+  // Flyway runtime (provided by BOM, ensure availability in this module)
+  implementation(libs.flyway.core)
+  implementation(libs.flyway.postgresql)
 
   testImplementation(projects.platform.platformTesting)
   testImplementation(libs.bundles.testing.jvm)
   testImplementation(libs.spring.boot.starter.test)
+  testImplementation("com.h2database:h2")
 }