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>

database/migrations/2026_07_08_140000_create_pos_members_table.php

@@ -0,0 +1,27 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::create('pos_members', function (Blueprint $table) {
+            $table->id();
+            $table->string('owner_ref')->index();
+            $table->string('user_ref')->index();
+            $table->string('role', 30)->default('cashier');
+            $table->foreignId('location_id')->nullable()->constrained('pos_locations')->nullOnDelete();
+            $table->timestamps();
+
+            $table->unique(['owner_ref', 'user_ref']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('pos_members');
+    }
+};

database/migrations/2026_07_08_140100_add_is_default_to_pos_locations.php

@@ -0,0 +1,34 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('pos_locations', function (Blueprint $table) {
+            $table->boolean('is_default')->default(false)->after('currency');
+        });
+
+        $defaults = DB::table('pos_locations')
+            ->select('owner_ref', DB::raw('MIN(id) as id'))
+            ->groupBy('owner_ref')
+            ->get();
+
+        foreach ($defaults as $row) {
+            DB::table('pos_locations')
+                ->where('id', $row->id)
+                ->update(['is_default' => true]);
+        }
+    }
+
+    public function down(): void
+    {
+        Schema::table('pos_locations', function (Blueprint $table) {
+            $table->dropColumn('is_default');
+        });
+    }
+};