Add Fortify auth, Flux dark mode, demo seed, and Docker hot reload.

Protect recordings per user, seed a demo login on container start, and bind-mount the app with Vite HMR for local Compose development.

resources/css/app.css

@@ -1,6 +1,8 @@
 @import 'tailwindcss';
+@import '../../vendor/livewire/flux/dist/flux.css';
 
 @source '../../vendor/laravel/framework/src/Illuminate/Pagination/resources/views/*.blade.php';
+@source '../../vendor/livewire/flux/stubs/**/*.blade.php';
 @source '../../storage/framework/views/*.php';
 @source '../views';
 @source '../js';
@@ -8,4 +10,9 @@
 @theme {
     --font-sans: 'Instrument Sans', ui-sans-serif, system-ui, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji',
         'Segoe UI Symbol', 'Noto Color Emoji';
+    --color-accent: var(--color-teal-700);
+    --color-accent-content: var(--color-teal-700);
+    --color-accent-foreground: var(--color-white);
 }
+
+@custom-variant dark (&:where(.dark, .dark *));