feat(ui): unify resource nav sidebars and polish project layouts

Extract application/database/service configuration sidebars and
unified headings; improve clone-to-environment, embedded deployments,
storage actions, OAuth icons, terminal, and shared form components.

tests/Feature/EnvVarInputDesignTest.php

@@ -0,0 +1,13 @@
+<?php
+
+it('uses the current listbox design for environment variable suggestions', function () {
+    $view = file_get_contents(resource_path('views/components/forms/env-var-input.blade.php'));
+
+    expect($view)
+        ->toContain('class="listbox-panel')
+        ->toContain('class="listbox-option justify-start! gap-2.5!"')
+        ->toContain("'bg-neutral-100 dark:bg-white/[0.08]': index === selectedIndex")
+        ->toContain('border-warning/25 bg-warning/10')
+        ->toContain('border-emerald-500/25 bg-emerald-500/10')
+        ->not->toContain('dark:bg-coolgray-100');
+});