feat(api): define shared EventEnvelope and EventType for Redis EventBus

- Add EventEnvelope case class (eventId, type, payload, timestamp, correlationId)
- Add EventType enum with all known event types
- Update account EventPublisher to use EventEnvelope instead of raw string interpolation
- Add EventEnvelope/EventType to account NativeReflectionConfig
- Add Jackson Scala and JSR310 modules to api dependencies
- Add api module dependency to account module
- Add NativeReflectionConfig rule to CLAUDE.md

Closes NCS-90
https://knockoutwhist.youtrack.cloud/issue/NCS-90

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

modules/account/build.gradle.kts

@@ -45,6 +45,7 @@ dependencies {
         }
     }
 
+    implementation(project(":modules:api"))
     implementation(project(":modules:security"))
 
     implementation(platform("${quarkusPlatformGroupId}:${quarkusPlatformArtifactId}:${quarkusPlatformVersion}"))