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/Nanny/NannyScheduleController.php

@@ -0,0 +1,27 @@
+<?php
+namespace App\Http\Controllers\Admin\Nanny;
+use App\Http\Controllers\Controller;
+use App\Models\Nanny\NannySchedule;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+
+class NannyScheduleController extends Controller
+{
+    public function index(Request $request): JsonResponse
+    {
+        $query = NannySchedule::query()->with(['nanny','order']);
+        $query->when($request->nanny_id, fn($q, $v) => $q->where('nanny_id', $v));
+        $query->when($request->start_date, fn($q, $v) => $q->where('schedule_date', '>=', $v));
+        $query->when($request->end_date, fn($q, $v) => $q->where('schedule_date', '<=', $v));
+        return $this->paginate($query->orderBy('schedule_date')->paginate($request->input('per_page', 31)));
+    }
+
+    public function store(Request $request): JsonResponse
+    {
+        $validated = $request->validate([
+            'nanny_id'=>'required|exists:nannies,id','nanny_order_id'=>'nullable|exists:nanny_orders,id',
+            'schedule_date'=>'required|date','type'=>'nullable|integer|in:1,2,3','remark'=>'nullable|string|max:255',
+        ]);
+        return $this->success(NannySchedule::create($validated));
+    }
+}