UI: portal/header refinements, board index UX, and user settings

app/Http/Controllers/UserSettingController.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\UserSetting;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+
+class UserSettingController extends Controller
+{
+    public function index(Request $request): JsonResponse
+    {
+        $user = $request->user();
+        $query = UserSetting::query()->where('user_id', $user->id);
+
+        if ($request->filled('key')) {
+            $query->where('key', $request->query('key'));
+        }
+
+        $settings = $query->get()->map(fn (UserSetting $setting) => [
+            'id' => $setting->id,
+            'key' => $setting->key,
+            'value' => $setting->value,
+        ]);
+
+        return response()->json($settings);
+    }
+
+    public function store(Request $request): JsonResponse
+    {
+        $data = $request->validate([
+            'key' => ['required', 'string', 'max:191'],
+            'value' => ['nullable', 'array'],
+        ]);
+
+        $setting = UserSetting::updateOrCreate(
+            ['user_id' => $request->user()->id, 'key' => $data['key']],
+            ['value' => $data['value'] ?? []]
+        );
+
+        return response()->json([
+            'id' => $setting->id,
+            'key' => $setting->key,
+            'value' => $setting->value,
+        ]);
+    }
+}