Paginate admin panel app registrations list (#22734)

## Context

The `findAllApplicationRegistrations` query on the admin panel Apps page
(`/settings/admin-panel#apps`) loaded every application registration at
once, with search and filtering done client-side.

## Changes

**Server**
- `findAllApplicationRegistrations` now takes `limit` / `offset` /
`searchTerm` / `isPreInstalledOnly` args and returns a
`PaginatedApplicationRegistrations` object (`registrations`,
`totalCount`, `hasMore`), following the same pattern as `getQueueJobs`.
- `ApplicationRegistrationService.findAll` uses `findAndCount` with
`take`/`skip`, and moves the search (name, source package, universal
identifier via `ILIKE`) and the pre-installed filter into the SQL query,
mirroring how `getInstalledWorkspacesGlobal` filters installed
workspaces.

**Frontend**
- `SettingsAdminApps` passes the page, the debounced search term (300ms,
like the installed workspaces table), and the pre-installed toggle as
query variables instead of filtering client-side.
- Adds a Previous / Next pagination footer (25 per page) matching the
queue jobs table, shown only when there is more than one page.
- The "unconfigured first" ordering is kept within each page
(`isConfigured` is a dataloader-resolved field, so it can't be sorted in
SQL).

## Notes
- Regenerated `generated-admin/graphql.ts` follows in a subsequent
commit.

---
_Generated by [Claude
Code](https://claude.ai/code/session_015erumgPozkbNA3zPeKrrFW)_

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---------

Co-authored-by: Weiko <corentin@twenty.com>

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

@@ -55,6 +55,7 @@ import { ApplicationRegistrationService } from 'src/engine/core-modules/applicat
 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 { PaginatedApplicationRegistrationsDTO } from 'src/engine/core-modules/application/application-registration/dtos/paginated-application-registrations.dto';
 import { UpdateApplicationRegistrationInput } from 'src/engine/core-modules/application/application-registration/dtos/update-application-registration.input';
 import {
   BACKFILL_APPLICATION_INSTALLATION_JOB_NAME,
@@ -105,8 +106,6 @@ 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(
@@ -480,11 +479,23 @@ export class AdminPanelResolver {
   }
 
   @UseGuards(AdminPanelGuard)
-  @Query(() => [ApplicationRegistrationEntity])
-  async findAllApplicationRegistrations(): Promise<
-    ApplicationRegistrationEntity[]
-  > {
-    return this.applicationRegistrationService.findAll();
+  @Query(() => PaginatedApplicationRegistrationsDTO)
+  async findAllApplicationRegistrations(
+    @Args('limit', { type: () => Int, nullable: true, defaultValue: 25 })
+    limit: number,
+    @Args('offset', { type: () => Int, nullable: true, defaultValue: 0 })
+    offset: number,
+    @Args('searchTerm', { type: () => String, nullable: true })
+    searchTerm?: string,
+    @Args('isPreInstalledOnly', { type: () => Boolean, nullable: true })
+    isPreInstalledOnly?: boolean,
+  ): Promise<PaginatedApplicationRegistrationsDTO> {
+    return this.applicationRegistrationService.findAll({
+      limit,
+      offset,
+      searchTerm,
+      isPreInstalledOnly,
+    });
   }
 
   @UseGuards(AdminPanelGuard)
@@ -838,14 +849,15 @@ export class AdminPanelResolver {
     @Args('input')
     {
       id,
-      page,
+      limit,
+      offset,
       searchTerm,
     }: FindApplicationRegistrationInstalledWorkspacesInput,
   ): Promise<ApplicationRegistrationInstalledWorkspacesDTO> {
     return this.applicationRegistrationService.getInstalledWorkspacesGlobal(
       id,
-      page ?? 1,
-      INSTALLED_WORKSPACES_PAGE_SIZE,
+      limit,
+      offset,
       searchTerm,
     );
   }