fix: build

marketing-content/build.gradle

@@ -1,10 +1,4 @@
 dependencies {
     implementation project(':common')
-    implementation 'com.mysql:mysql-connector-j'
-    // HTTP Client for external AI API
-    implementation 'org.springframework.boot:spring-boot-starter-webflux'
-}
-
-bootJar {
-    archiveFileName = "marketing-content-service.jar"
-}
+    runtimeOnly 'com.mysql:mysql-connector-j'
+}