refactor(pre-installed-apps): extract parsePreInstalledApps util

The `@ValidateIf` callback on EXA_API_KEY in config-variables.ts (added
in the stacked PR) reimplements the same comma-split-trim-filter logic
as PreInstalledAppsService.getPreInstalledPackageNames. Extract the
pure parser once so the startup-validator and the runtime service can
share the invariant (whitespace, empty handling) — if the parsing rule
ever changes, both sites update together.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

packages/twenty-server/src/engine/core-modules/application/pre-installed-apps/pre-installed-apps.service.ts

@@ -10,6 +10,7 @@ import { ApplicationRegistrationVariableEntity } from 'src/engine/core-modules/a
 import { ApplicationRegistrationEntity } from 'src/engine/core-modules/application/application-registration/application-registration.entity';
 import { ApplicationRegistrationSourceType } from 'src/engine/core-modules/application/application-registration/enums/application-registration-source-type.enum';
 import { ApplicationRegistrationService } from 'src/engine/core-modules/application/application-registration/application-registration.service';
+import { parsePreInstalledApps } from 'src/engine/core-modules/application/pre-installed-apps/utils/parse-pre-installed-apps.util';
 import { SecretEncryptionService } from 'src/engine/core-modules/secret-encryption/secret-encryption.service';
 import { TwentyConfigService } from 'src/engine/core-modules/twenty-config/twenty-config.service';
 
@@ -49,12 +50,9 @@ export class PreInstalledAppsService implements OnApplicationBootstrap {
   }
 
   getPreInstalledPackageNames(): string[] {
-    const raw = this.twentyConfigService.get('PRE_INSTALLED_APPS') ?? '';
-
-    return raw
-      .split(',')
-      .map((name) => name.trim())
-      .filter((name) => name.length > 0);
+    return parsePreInstalledApps(
+      this.twentyConfigService.get('PRE_INSTALLED_APPS'),
+    );
   }
 
   // Idempotent: fetches each pre-installed package's manifest from the

packages/twenty-server/src/engine/core-modules/application/pre-installed-apps/utils/parse-pre-installed-apps.util.ts

@@ -0,0 +1,9 @@
+// Parses the `PRE_INSTALLED_APPS` env string into a list of npm package
+// names. Shared between the config validator (at startup-time) and
+// PreInstalledAppsService (at runtime) so the two code paths can't drift
+// on whitespace/empty handling.
+export const parsePreInstalledApps = (raw: string | undefined): string[] =>
+  (raw ?? '')
+    .split(',')
+    .map((name) => name.trim())
+    .filter((name) => name.length > 0);