tweak TODOs

src/actor_store/db/migrations.rs

···
 
     /// Run all migrations
     pub(crate) async fn migrate_to_latest(&self) -> Result<()> {
-        // In a production system, we'd track which migrations have been run
+        // We could track which migrations have been run
         // For simplicity, we just run them all for now
         for migration in &self.migrations {
             migration(&self.db)?;
···
 /// Initial migration to create tables
 fn init_migration(db: &ActorDb) -> Result<()> {
     tokio::task::block_in_place(|| {
-        tokio::runtime::Handle::current().block_on(async {
-            // Use the create_tables function that's now defined in the db module
-            crate::actor_store::db::create_tables(&db.db).await
-        })
+        tokio::runtime::Handle::current()
+            .block_on(async { crate::actor_store::db::create_tables(&db.db).await })
     })
 }

src/actor_store/mod.rs

···
     /// Configuration for the repo.
     pub(crate) config: RepoConfig,
     /// Background task queue (we'll need to implement this later).
-    pub(crate) background_queue: Arc<()>, // Placeholder until we implement a proper queue
+    pub(crate) background_queue: Arc<()>, // TODO: Placeholder until we implement a proper queue
 }
 
 /// The location of an actor's data.
···
         Ok(())
     }
 
-    // To be implemented: destroy, reserve_keypair, etc.
+    // TODO: To be implemented: destroy, reserve_keypair, etc.
 }
 
 // Helper function for SHA-256 hashing