docs: mark P2 complete; scope P3 (view-count batching)

docs/architecture-refactor.md

@@ -258,8 +258,12 @@ The mock harness lied because it used **one perfect relay**. New fixtures:
 - [x] P1 SubscriptionManager + lint guard + video-feed pilot
       (interim RelayHealth = read-relay cap in `client.js`; full liveness
       ranking deferred — the cap covers the immediate amplifier)
-- [ ] P2 moderation reports batched + re-enabled
-- [ ] P3 view counts batched + re-enabled
+- [x] P2 moderation reports batched + re-enabled (single SubscriptionManager
+      sub over the active id set; trusted-mute subs already batched-by-author)
+- [ ] P3 view counts batched + re-enabled — requires restructuring
+      js/viewCounter.js from per-pointer hydrate/live into ONE batched
+      kind-30079 query bucketed by `#a`, then flip the VideoListView
+      circuit-breaker back on
 - [ ] P4 lists via stores (follows/hashtags/blocks/watch-history/profiles)
 - [ ] P5 AppState + Coordinator + unidirectional flow
 - [ ] P6 cleanup + config relay-set trim + final docs