feat: atomic social local writes, remote review enrichment

SocialCommand methods take events. Local follow ops = one FollowCommand::apply
tx (rows + events). k_ap path (remote, block/unblock): best-effort publish in
CompositeSocialAdapter after k_ap write; not atomic, k_ap owns tx.
save_remote_review takes events, enqueued in same tx via
sqlite::persistence::enqueue_events. Deps drop event_publisher: social
command, ReviewObjectHandler.

Remaining .publish( sites:
announce-only: users/delete_account UserDeleted, person/get + get_credits
PersonEnrichmentRequested, jobs/enrichment_staleness, http-axum search,
ImageStored (sync_poster, poster_sync_handler, image-converter backfill,
update_profile; object storage), federation_event_bridge (handler reaction),
nats relay (transport).
non-atomic by necessity: CompositeSocialAdapter::announce (k_ap-owned write).
Everything else rides its write.

crates/adapters/sqlite/tests/cascade_test.rs

@@ -11,7 +11,8 @@ use domain::models::{
     WatchEvent, WatchEventSource, WatchlistEntry, WebhookToken,
 };
 use domain::ports::{
-    FollowCommand, UserProfileFieldsRepository, WatchEventCommand, WebhookTokenRepository,
+    FollowCommand, FollowWrite, UserProfileFieldsRepository, WatchEventCommand,
+    WebhookTokenRepository,
 };
 use domain::testing::{
     MOVIE_CASCADE_TABLES, USER_CASCADE_TABLES, USER_CASCADE_TABLES_OUTSIDE_STORE, test_goal,
@@ -184,11 +185,21 @@ async fn seed_user_with_dependents(
         domain::value_objects::InstanceIdentity::new("https://md.example"),
     );
     social
-        .add_follow(user_id.value(), REMOTE_ACTOR, FollowStatus::Accepted)
-        .await
-        .unwrap();
-    social
-        .add_follower(user_id.value(), REMOTE_ACTOR, FollowStatus::Accepted)
+        .apply(
+            &[
+                FollowWrite::AddFollow {
+                    follower_id: user_id.value(),
+                    target_actor_url: REMOTE_ACTOR.into(),
+                    status: FollowStatus::Accepted,
+                },
+                FollowWrite::AddFollower {
+                    local_user_id: user_id.value(),
+                    follower_actor_url: REMOTE_ACTOR.into(),
+                    status: FollowStatus::Accepted,
+                },
+            ],
+            &[],
+        )
         .await
         .unwrap();
     // No repository in this crate owns these two tables (federation crate).