feat: 第三阶段业务模块(服务产康/月嫂/进销存)

- 新增3个migration(15张表): service/nanny/inventory
- 新增15个Model + 13个Controller
- 新增55条API路由(总计212条)
- 新增3个前端API模块 + 11个管理页面
- vite build验证通过

backend/app/Http/Controllers/Admin/Inventory/WarehouseController.php

@@ -0,0 +1,24 @@
+<?php
+namespace App\Http\Controllers\Admin\Inventory;
+use App\Http\Controllers\Controller;
+use App\Models\Inventory\Warehouse;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+
+class WarehouseController extends Controller
+{
+    public function index(Request $request): JsonResponse
+    {
+        $query = Warehouse::query()->with('manager');
+        $query->when($request->name, fn($q, $v) => $q->where('name', 'like', "%{$v}%"));
+        return $this->paginate($query->latest()->paginate($request->input('per_page', 15)));
+    }
+    public function store(Request $request): JsonResponse
+    {
+        $v = $request->validate(['name'=>'required|string|max:50','manager_id'=>'nullable|exists:users,id','status'=>'sometimes|integer|in:0,1']);
+        return $this->success(Warehouse::create($v));
+    }
+    public function show(Warehouse $warehouse): JsonResponse { return $this->success($warehouse->load('manager')); }
+    public function update(Request $request, Warehouse $warehouse): JsonResponse { $v = $request->validate(['name'=>'sometimes|string|max:50','manager_id'=>'nullable|exists:users,id','status'=>'sometimes|integer|in:0,1']); $warehouse->update($v); return $this->success($warehouse); }
+    public function destroy(Warehouse $warehouse): JsonResponse { $warehouse->delete(); return $this->success(null); }
+}