add common module

distribution-service/build.gradle

@@ -0,0 +1,16 @@
+dependencies {
+    // Kafka for event publishing
+    implementation 'org.springframework.kafka:spring-kafka'
+
+    // OpenFeign for external channel APIs
+    implementation 'org.springframework.cloud:spring-cloud-starter-openfeign'
+
+    // Resilience4j for Circuit Breaker, Retry, Bulkhead
+    implementation "io.github.resilience4j:resilience4j-spring-boot3:${resilience4jVersion}"
+    implementation "io.github.resilience4j:resilience4j-circuitbreaker:${resilience4jVersion}"
+    implementation "io.github.resilience4j:resilience4j-retry:${resilience4jVersion}"
+    implementation "io.github.resilience4j:resilience4j-bulkhead:${resilience4jVersion}"
+
+    // Jackson for JSON
+    implementation 'com.fasterxml.jackson.core:jackson-databind'
+}