feat: implement TMDb enrichment for movie profiles

- Add SqliteMovieProfileRepository for managing movie profiles in SQLite.
- Create TmdbEnrichmentClient to fetch movie details from TMDb API.
- Implement enrichment event handling with EnrichmentHandler.
- Introduce periodic jobs for cleaning up expired import sessions and checking for stale movie profiles.
- Update application context to include movie profile repository.
- Add API endpoint to retrieve movie profiles.
- Extend domain models with new structures for movie enrichment (Genre, Keyword, CastMember, CrewMember, MovieProfile).
- Modify event system to include MovieEnrichmentRequested event.
- Enhance tests to cover new functionality and ensure stability.

crates/adapters/nats/src/subject.rs

@@ -6,8 +6,9 @@ pub fn event_to_subject(prefix: &str, event: &DomainEvent) -> String {
         DomainEvent::ReviewUpdated { .. }   => "review.updated",
         DomainEvent::ReviewDeleted { .. }   => "review.deleted",
         DomainEvent::MovieDiscovered { .. } => "movie.discovered",
-        DomainEvent::MovieDeleted { .. }    => "movie.deleted",
-        DomainEvent::UserUpdated { .. }     => "user.updated",
+        DomainEvent::MovieDeleted { .. }              => "movie.deleted",
+        DomainEvent::UserUpdated { .. }               => "user.updated",
+        DomainEvent::MovieEnrichmentRequested { .. }  => "movie.enrichment.requested",
     };
     format!("{prefix}.{suffix}")
 }