fix(postgres): accept_note returns ThoughtId via SELECT after INSERT

crates/application/src/testing.rs

@@ -103,8 +103,8 @@ impl ActivityPubRepository for TestApRepo {
         _content_warning: Option<String>,
         _visibility: &str,
         _in_reply_to: Option<&str>,
-    ) -> Result<(), DomainError> {
-        Ok(())
+    ) -> Result<ThoughtId, DomainError> {
+        Ok(ThoughtId::from_uuid(uuid::Uuid::new_v4()))
     }
     async fn apply_note_update(
         &self,