Fix DependencyResolutionResult not dispatched when resolution fails (fix #8635)

- LifecycleDependencyResolver dispatched the result only on the success path; on failure the exception was wrapped before the dispatch point, so listeners received the request but never a result
- Move the dispatch into both the success and catch branches immediately after the resolution call; remove the post-try dispatch; event order on success is unchanged, aggregator builds that tolerate failure still receive the result exactly once
- Add LifecycleDependencyResolverEventsTest: result fires once on success, once on failure, and once when an aggregator tolerates the failure