Add Lab and Blood Bank manager roles with admin UIs.

Give lab_manager catalog/ops admin access and blood_bank_manager a branch-level stock register plus specialty admin surface, while keeping technicians on clinical queues.

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

database/migrations/2026_07_19_140000_create_care_blood_bank_stock_table.php

@@ -0,0 +1,36 @@
+<?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('care_blood_bank_stock', function (Blueprint $table) {
+            $table->id();
+            $table->string('owner_ref')->index();
+            $table->foreignId('organization_id')->constrained('care_organizations')->cascadeOnDelete();
+            $table->foreignId('branch_id')->nullable()->constrained('care_branches')->nullOnDelete();
+            $table->string('product_code', 64);
+            $table->string('product_label');
+            $table->unsignedInteger('units_on_hand')->default(0);
+            $table->unsignedInteger('reorder_level')->default(2);
+            $table->text('notes')->nullable();
+            $table->string('updated_by')->nullable();
+            $table->timestamps();
+
+            $table->unique(
+                ['organization_id', 'branch_id', 'product_code'],
+                'care_bb_stock_org_branch_product_unique',
+            );
+            $table->index(['organization_id', 'branch_id']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('care_blood_bank_stock');
+    }
+};