fix: Replace hardcoded paths with route/url helpers for subdirectory support

Files updated:
- layouts/knowledge-base.blade.php - Use url('/') for home link
- layouts/navigation.blade.php - Use url('/') for nav links
- layouts/guest.blade.php - Use url('/') for logo link
- Document.php - Use route() for wiki links
- DocumentLink.php - Use route() for URL attribute
- AuthenticatedSessionController.php - Use url('/') for redirects
- DocumentEditor.php - Use url('/') for redirect
- ProfileController.php - Use url('/') for redirect

This ensures the app works when deployed in a subdirectory

src/resources/views/layouts/knowledge-base.blade.php

@@ -34,7 +34,7 @@
                 <div class="max-w-full mx-auto px-4 sm:px-6 lg:px-8">
                     <div class="flex justify-between h-16">
                         <div class="flex items-center space-x-3">
-                            <a href="/" class="flex items-center space-x-3">
+                            <a href="{{ url('/') }}" class="flex items-center space-x-3">
                                 <x-application-logo class="block h-8 w-auto fill-current text-gray-800" />
                                 <h1 class="text-xl font-semibold text-gray-900">
                                     {{ config('app.name', 'Knowledge Base') }}