Fix 500 when exiting hosting panel for existing accounts.

The account overview queried a local mailboxes table that the extracted hosting app does not have; guard those lookups and skip email-addon upsells when mailboxes are managed on Ladill Email.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Services/Hosting/UpsellRecommendationService.php

@@ -20,11 +20,16 @@ class UpsellRecommendationService
      */
     public function recommendationsForUser(User $user): Collection
     {
-        $accounts = HostingAccount::query()
+        $accountsQuery = HostingAccount::query()
             ->where('user_id', $user->id)
             ->where('status', HostingAccount::STATUS_ACTIVE)
-            ->with(['product', 'mailboxes:id,hosting_account_id,is_paid'])
-            ->get();
+            ->with(['product']);
+
+        if (HostingAccount::tracksLocalMailboxes()) {
+            $accountsQuery->with(['mailboxes:id,hosting_account_id,is_paid']);
+        }
+
+        $accounts = $accountsQuery->get();
 
         return $accounts
             ->flatMap(fn (HostingAccount $account): array => $this->recommendationsForAccount($account))
@@ -37,7 +42,7 @@ class UpsellRecommendationService
      */
     public function recommendationsForAccount(HostingAccount $account): array
     {
-        $account->loadMissing(['product', 'mailboxes']);
+        $account->loadMissing(['product']);
 
         $recommendations = [];
         $upgradeProduct = $this->nextUpgradeProduct($account);
@@ -75,8 +80,8 @@ class UpsellRecommendationService
         }
 
         $freeAllowance = $account->freeEmailAllowance();
-        $mailboxCount = $account->mailboxes->count();
-        if ($freeAllowance !== null && $mailboxCount > $freeAllowance) {
+        $mailboxCount = $account->loadedMailboxes()->count();
+        if (HostingAccount::tracksLocalMailboxes() && $freeAllowance !== null && $mailboxCount > $freeAllowance) {
             $extraMailboxes = $mailboxCount - $freeAllowance;
             $addonAmount = self::EMAIL_ADDON_QUANTITY * self::EMAIL_ADDON_UNIT_PRICE;