feat: add notes management feature with CRUD operations

- Created Note model and controller for handling notes.
- Added routes for notes CRUD operations.
- Implemented notes index view with search and pinning functionality.
- Created migration for notes table with necessary fields.
- Developed event creation form with client and contract options.

app/Http/Controllers/InvoiceSettingsController.php

@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace App\Http\Controllers;
 
 use App\Models\InvoiceSettings;
+use Illuminate\Http\JsonResponse;
 use Illuminate\Http\RedirectResponse;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Storage;
@@ -53,4 +54,35 @@ class InvoiceSettingsController extends Controller
         return redirect()->route('invoice-settings.edit')
             ->with('success', '🧾 Invoice settings saved!');
     }
+
+    public function uploadLogo(Request $request): JsonResponse
+    {
+        $request->validate(['header_logo' => 'required|image|max:2048']);
+
+        $settings = InvoiceSettings::instance();
+
+        if ($settings->header_logo) {
+            Storage::disk('public')->delete($settings->header_logo);
+        }
+
+        $path = $request->file('header_logo')->store('invoice-logos', 'public');
+        $settings->update(['header_logo' => $path]);
+
+        return response()->json([
+            'url' => asset('storage/' . $path),
+        ]);
+    }
+
+    public function deleteLogo(): RedirectResponse
+    {
+        $settings = InvoiceSettings::instance();
+
+        if ($settings->header_logo) {
+            Storage::disk('public')->delete($settings->header_logo);
+            $settings->update(['header_logo' => null]);
+        }
+
+        return redirect()->route('invoice-settings.edit')
+            ->with('success', '🗑️ Logo removed.');
+    }
 }