feat(server): clean up dirty data from legacy version (#15078)

#### PR Dependency Tree


* **PR #15078** 👈

This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
  * Persist and replay incoming payment webhooks for reliability.
* Track provider-level subscriptions, payment events, and per-target
trial usage across providers.
  * Nightly replay job to reprocess stuck payment events.
* Shadow backfill mode and emit-suppression options to control
projection/backfill side effects.
  * Subscriptions now derived from entitlements + provider facts.

* **Bug Fixes**
* Improved error propagation, retry tracking, and safer owner-grant
projection handling.

* **Tests**
* Added webhook failure/replay, provider integration, entitlement
projection, and trial/checkout tests.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/backend/server/migrations/20260512133700_workspace_runtime_states/migration.sql

@@ -637,6 +637,18 @@ BEGIN
     RAISE EXCEPTION 'Cannot project unknown doc role % for %.% user %', NEW.type, NEW.workspace_id, NEW.page_id, NEW.user_id;
   END IF;
 
+  IF projected_role = 'owner' AND EXISTS (
+    SELECT 1
+    FROM doc_grants
+    WHERE workspace_id = NEW.workspace_id
+      AND doc_id = NEW.page_id
+      AND principal_type = 'user'
+      AND role = 'owner'
+      AND principal_id <> NEW.user_id
+  ) THEN
+    RETURN NEW;
+  END IF;
+
   INSERT INTO doc_grants (
     workspace_id,
     doc_id,