Add installed workspaces view to application registration (#22359)

## After
<img width="895" height="344" alt="image"
src="https://github.com/user-attachments/assets/33591753-f248-45ce-b32d-cc1112f50579"
/>
<img width="889" height="425" alt="image"
src="https://github.com/user-attachments/assets/469ee228-9abb-486f-b2ec-9efb490bb2c8"
/>
<img width="766" height="343" alt="image"
src="https://github.com/user-attachments/assets/2d88444a-6d98-4f97-8e5d-109197cfad27"
/>


## Summary
Add a new "Installed workspaces" section to the application registration
settings page that displays all workspaces that have installed a given
application, with pagination support.

## Key Changes
- **Backend Service**: Added `getInstalledWorkspaces()` method to
`ApplicationRegistrationService` that queries installed applications
across workspaces with pagination support
- **Backend DTO**: Created
`ApplicationRegistrationInstalledWorkspacesDTO` and
`InstalledWorkspaceDTO` to structure the response with workspace details
(id, displayName, logo, version), total count, and hasMore flag
- **GraphQL Resolver**: Added
`findApplicationRegistrationInstalledWorkspaces` query resolver with
pagination (page parameter, default page size of 10) and proper
authorization guards
- **Frontend Component**: Created
`SettingsApplicationRegistrationInstalledWorkspaces` component that:
- Displays installed workspaces in a table with workspace logo, name,
and version
  - Shows initial 3 workspaces with "Show all" button to expand
- Implements pagination with "Show more" button to load additional pages
  - Handles empty state (returns null if no workspaces installed)
- **GraphQL Query**: Added
`FindApplicationRegistrationInstalledWorkspaces` query document for
frontend data fetching
- **Integration**: Integrated the new component into
`SettingsApplicationRegistrationGeneralTab`

## Implementation Details
- Pagination uses offset-based approach with configurable page size (10
workspaces per page)
- Query results are ordered by workspace displayName and id for
consistent ordering
- Soft-deleted applications and workspaces are excluded from the list
and counts
- Apollo Client's `fetchMore` with `updateQuery` merges paginated
results into the cache
- Component respects existing authorization (API_KEYS_AND_WEBHOOKS
permission required)
- Uses existing UI components (Table, Card, Avatar, Button) from
twenty-ui library
- Supports internationalization with Lingui

## Screenshots
The new "Installed workspaces" section on the app registration General
tab (admin app detail page), captured against a local instance with a
demo app installed in 14 workspaces. The three PNGs are committed under
`.github/assets/screenshots/installed-workspaces/` and render inline in
the **Files changed** tab of this PR:

- `1-first-3-show-all.png` — Collapsed: the first 3 installed workspaces
(avatar + name + installed version) with a "Show all" button.
- `2-expanded-show-more.png` — "Show all": the first page of 10
workspaces, with a "Show more" button (more remain).
- `3-all-paginated.png` — "Show more": all 14 workspaces loaded, button
gone.

Review in cubic:
https://cubic.dev/pr/twentyhq/twenty/pull/22359?utm_source=github

https://claude.ai/code/session_012nWtviSBdfFeHEASTtwvJ7

packages/twenty-server/src/engine/core-modules/admin-panel/admin-panel.resolver.ts

@@ -52,6 +52,9 @@ import { ApplicationRegistrationVariableService } from 'src/engine/core-modules/
 import { UpdateApplicationRegistrationVariableInput } from 'src/engine/core-modules/application/application-registration-variable/dtos/update-application-registration-variable.input';
 import { ApplicationRegistrationEntity } from 'src/engine/core-modules/application/application-registration/application-registration.entity';
 import { ApplicationRegistrationService } from 'src/engine/core-modules/application/application-registration/application-registration.service';
+import { ApplicationRegistrationInstalledWorkspacesDTO } from 'src/engine/core-modules/application/application-registration/dtos/application-registration-installed-workspaces.dto';
+import { ApplicationRegistrationStatsDTO } from 'src/engine/core-modules/application/application-registration/dtos/application-registration-stats.dto';
+import { FindApplicationRegistrationInstalledWorkspacesInput } from 'src/engine/core-modules/application/application-registration/dtos/find-application-registration-installed-workspaces.input';
 import { UpdateApplicationRegistrationInput } from 'src/engine/core-modules/application/application-registration/dtos/update-application-registration.input';
 import {
   BACKFILL_APPLICATION_INSTALLATION_JOB_NAME,
@@ -102,6 +105,8 @@ import { ModelsDevProviderSuggestionDTO } from './dtos/models-dev-provider-sugge
 import { QueueMetricsDataDTO } from './dtos/queue-metrics-data.dto';
 import { SetMaintenanceModeInput } from './dtos/set-maintenance-mode.input';
 
+const INSTALLED_WORKSPACES_PAGE_SIZE = 10;
+
 @UsePipes(ResolverValidationPipe)
 @AdminResolver()
 @UseFilters(
@@ -819,6 +824,32 @@ export class AdminPanelResolver {
     );
   }
 
+  @UseGuards(AdminPanelGuard)
+  @Query(() => ApplicationRegistrationStatsDTO)
+  async findAdminApplicationRegistrationStats(
+    @Args('id') id: string,
+  ): Promise<ApplicationRegistrationStatsDTO> {
+    return this.applicationRegistrationService.getStatsGlobal(id);
+  }
+
+  @UseGuards(AdminPanelGuard)
+  @Query(() => ApplicationRegistrationInstalledWorkspacesDTO)
+  async findAdminApplicationRegistrationInstalledWorkspaces(
+    @Args('input')
+    {
+      id,
+      page,
+      searchTerm,
+    }: FindApplicationRegistrationInstalledWorkspacesInput,
+  ): Promise<ApplicationRegistrationInstalledWorkspacesDTO> {
+    return this.applicationRegistrationService.getInstalledWorkspacesGlobal(
+      id,
+      page ?? 1,
+      INSTALLED_WORKSPACES_PAGE_SIZE,
+      searchTerm,
+    );
+  }
+
   @UseGuards(AdminPanelGuard)
   @Mutation(() => ApplicationRegistrationVariableDTO)
   async updateAdminApplicationRegistrationVariable(