feat(activitypub-base): LikeActivity struct + on_like/on_announce_received trait methods

crates/adapters/activitypub/src/handler.rs

@@ -170,6 +170,14 @@ impl ApObjectHandler for ThoughtsObjectHandler {
             .map_err(|e| anyhow!("{e}"))
     }
 
+    async fn on_like(&self, _object_url: &Url, _actor_url: &Url) -> Result<()> {
+        Ok(())
+    }
+
+    async fn on_announce_received(&self, _object_url: &Url, _actor_url: &Url) -> Result<()> {
+        Ok(())
+    }
+
     async fn count_local_posts(&self) -> Result<u64> {
         self.repo
             .count_local_notes()