Add multi-branch POS with team roles and branch-scoped cashiers.

Pro and Business users can manage branches, invite cashiers with branch assignment, and switch registers; sales and register flows respect acting location.

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

app/Services/Pos/SubscriptionService.php

@@ -110,6 +110,25 @@ class SubscriptionService
         return PosLocation::owned($ownerRef)->count();
     }
 
+    public function canUseMultiLocation(User $user): bool
+    {
+        return $this->isPro($user);
+    }
+
+    public function canAddLocation(User $user, string $ownerRef): bool
+    {
+        if (! $this->canUseMultiLocation($user)) {
+            return $this->locationCount($ownerRef) < (int) config('pos.free.max_locations', 1);
+        }
+
+        return true;
+    }
+
+    public function canManageTeam(User $user): bool
+    {
+        return $this->isPro($user);
+    }
+
     /** @return array{0:bool,1:string} */
     public function subscribe(User $user): array
     {