feat: menu & API Informasi Sekolah untuk aplikasi wali

- Tabel school_informations (judul, isi, kategori, tanggal kegiatan, publish)
- Menu admin 'Informasi Sekolah' (CRUD + permission manage-school-info)
- API wali: GET /parent/school-informations (hanya yang dipublikasikan)
- 2 data contoh: Jadwal UTS & Class Meet
- Test suite tetap hijau (39 test)

app/Http/Controllers/Admin/SchoolInformationController.php

@@ -0,0 +1,61 @@
+<?php
+
+namespace App\Http\Controllers\Admin;
+
+use App\Http\Controllers\Controller;
+use App\Models\SchoolInformation;
+use Illuminate\Http\RedirectResponse;
+use Illuminate\Http\Request;
+use Illuminate\View\View;
+
+class SchoolInformationController extends Controller
+{
+    public function index(): View
+    {
+        $items = SchoolInformation::query()
+            ->with('creator:id,name')
+            ->orderByDesc('event_date')
+            ->orderByDesc('created_at')
+            ->get();
+
+        return view('settings.school-info', compact('items'));
+    }
+
+    public function store(Request $request): RedirectResponse
+    {
+        $validated = $this->validateData($request);
+
+        SchoolInformation::create($validated + ['created_by' => $request->user()->id]);
+
+        return back()->with('success', 'Informasi "' . $validated['title'] . '" berhasil dipublikasikan.');
+    }
+
+    public function update(Request $request, int $id): RedirectResponse
+    {
+        $info = SchoolInformation::findOrFail($id);
+        $validated = $this->validateData($request);
+
+        $info->update($validated);
+
+        return back()->with('success', 'Informasi berhasil diperbarui.');
+    }
+
+    public function destroy(Request $request, int $id): RedirectResponse
+    {
+        $info = SchoolInformation::findOrFail($id);
+        $info->delete();
+
+        return back()->with('success', 'Informasi dihapus.');
+    }
+
+    protected function validateData(Request $request): array
+    {
+        return $request->validate([
+            'title' => ['required', 'string', 'max:200'],
+            'content' => ['nullable', 'string'],
+            'category' => ['required', 'string', 'max:50'],
+            'event_date' => ['nullable', 'date'],
+            'is_published' => ['nullable', 'boolean'],
+        ]) + ['is_published' => $request->boolean('is_published')];
+    }
+}

app/Http/Controllers/Api/ParentSchoolInformationController.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Http\Controllers\Api;
+
+use App\Http\Controllers\Controller;
+use App\Models\SchoolInformation;
+use Illuminate\Http\JsonResponse;
+
+class ParentSchoolInformationController extends Controller
+{
+    /**
+     * Daftar informasi sekolah yang dipublikasikan (untuk app wali murid).
+     */
+    public function index(): JsonResponse
+    {
+        $items = SchoolInformation::query()
+            ->where('is_published', true)
+            ->orderByDesc('event_date')
+            ->orderByDesc('created_at')
+            ->limit(50)
+            ->get()
+            ->map(fn (SchoolInformation $i) => [
+                'id' => $i->id,
+                'title' => $i->title,
+                'content' => $i->content,
+                'category' => $i->category,
+                'event_date' => $i->event_date?->toDateString(),
+                'created_at' => $i->created_at?->toISOString(),
+            ]);
+
+        return response()->json(['informations' => $items]);
+    }
+}