Add @ConditionalOnMissingBean guard to StepEventPublisherBridge bean

[casc84ab]

Summary

• Added @ConditionalOnMissingBean(type = "org.fireflyframework.transactional.saga.events.StepEventPublisher") to StepBridgeConfiguration.stepEventPublisherBridge() to prevent duplicate bean registration.
• The condition checks for the StepEventPublisher interface type to detect beans from any bridge implementation (core, domain, or data).

Test plan

• Verify application starts correctly with only fireflyframework-data on classpath
• Verify application starts correctly with both fireflyframework-data and fireflyframework-core on classpath
• Confirm only one StepEventPublisher bean is registered when multiple modules are present

[ancongui]

Code Review: Add @ConditionalOnMissingBean guard to StepEventPublisherBridge bean

Summary

This PR adds @ConditionalOnMissingBean(type = "org.fireflyframework.transactional.saga.events.StepEventPublisher") to the stepEventPublisherBridge() bean method in StepBridgeConfiguration (data module). Same pattern as the domain module PR.

CI Status

✅ All checks pass (CodeQL, build)

Findings

1. Consistent with domain module PR (Severity: None — good)
Uses the exact same annotation with the same string-based type reference as the domain module. This consistency is good.

2. Same observations as domain PR apply

• String-based type reference is correct
• Interface-level condition is well designed
• @Primary + @ConditionalOnMissingBean is slightly redundant but not harmful
• Auto-configuration ordering should be considered for deterministic behavior

Recommendation

APPROVE — Identical pattern to the domain PR. Clean, correct, and follows established conventions.

[ancongui]

Closing: the StepBridgeConfiguration fix references the renamed org.fireflyframework.transactional namespace. The bean guard is already addressed in the current develop branch with the orchestration namespace refactoring.