fix(server): member loading (#15156)

#### PR Dependency Tree


* **PR #15156** 👈

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

* **Bug Fixes**
* Fixed Stripe subscription syncing for Team plans to update the correct
existing local subscription (avoiding duplicates) while refreshing
quantity and billing/trial period details.
* **UI/UX Improvements**
* Improved workspace member list loading/error states with shared UI
components and steadier pagination behavior.
  * Refined fallback styling for cleaner, more stable layout.
* **Tests**
* Expanded subscription and projection coverage and adjusted
seat-allocation/e2e assertions to be more robust.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/frontend/core/src/modules/permissions/entities/members.ts

@@ -66,8 +66,9 @@ export class WorkspaceMembers extends Entity {
   }
 
   private async requestMembers(signal: AbortSignal) {
-    this.pageMembers$.setValue(undefined);
     this.isLoading$.setValue(true);
+    this.error$.setValue(null);
+    this.pageMembers$.setValue(undefined);
     try {
       const pageNum = this.pageNum$.value;
       return await this.store.fetchMembers(