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/Http/Controllers/Pos/RegisterController.php

@@ -30,7 +30,7 @@ class RegisterController extends Controller
     public function index(Request $request): View
     {
         $owner = $this->ownerRef($request);
-        $location = $this->locations->ensureDefault($owner);
+        $location = $this->location($request);
 
         return view('pos.register', [
             'products' => $this->registerProducts($owner, $location),
@@ -47,7 +47,7 @@ class RegisterController extends Controller
         ]);
 
         $owner = $this->ownerRef($request);
-        $location = $this->locations->ensureDefault($owner);
+        $location = $this->location($request);
         $product = $this->barcodes->lookup($owner, $location, $data['code']);
 
         if (! $product || $product['price_minor'] <= 0 || $product['name'] === '') {
@@ -66,7 +66,14 @@ class RegisterController extends Controller
     private function registerProducts(string $owner, PosLocation $location): array
     {
         if ($location->isRestaurant()) {
-            return PosProduct::owned($owner)->active()->orderBy('name')->get()
+            return PosProduct::owned($owner)
+                ->active()
+                ->where(function ($query) use ($location) {
+                    $query->where('location_id', $location->id)
+                        ->orWhereNull('location_id');
+                })
+                ->orderBy('name')
+                ->get()
                 ->map(fn (PosProduct $p) => [
                     'id' => $p->id,
                     'name' => $p->name,
@@ -99,7 +106,7 @@ class RegisterController extends Controller
     {
         $data = $request->validate(['style' => ['required', 'in:retail,restaurant']]);
 
-        $location = $this->locations->ensureDefault($this->ownerRef($request));
+        $location = $this->location($request);
         $location->update(['service_style' => $data['style']]);
 
         if ($data['style'] === PosLocation::STYLE_RESTAURANT) {
@@ -135,7 +142,7 @@ class RegisterController extends Controller
         ]);
 
         $merchant = ladill_account() ?? $request->user();
-        $location = $this->locations->ensureDefault($this->ownerRef($request));
+        $location = $this->location($request);
 
         $lines = $data['lines'];
         if (! $location->isRestaurant()) {