fix: close search index consistency gaps (orphan cleanup, discovery indexing, poster sync)

crates/presentation/src/tests/api_handlers.rs

@@ -45,6 +45,9 @@ impl domain::ports::PersonQuery for PersonQueryStub {
     async fn get_credits(&self, _: &domain::models::PersonId) -> Result<domain::models::PersonCredits, DomainError> {
         Err(DomainError::NotFound("Person not found".into()))
     }
+    async fn list_orphaned_persons(&self) -> Result<Vec<domain::models::PersonId>, DomainError> {
+        Ok(vec![])
+    }
 }
 
 // --- Search endpoint tests ---

crates/presentation/src/tests/extractors.rs

@@ -362,6 +362,7 @@ impl PersonQuery for Panic {
     async fn get_by_id(&self, _: &PersonId) -> Result<Option<Person>, DomainError> { panic!() }
     async fn get_by_external_id(&self, _: &domain::models::ExternalPersonId) -> Result<Option<Person>, DomainError> { panic!() }
     async fn get_credits(&self, _: &PersonId) -> Result<PersonCredits, DomainError> { panic!() }
+    async fn list_orphaned_persons(&self) -> Result<Vec<PersonId>, DomainError> { panic!() }
 }
 #[async_trait::async_trait]
 impl SearchPort for Panic {