feat(server): improve private key and cloud link flows

Add server private key generation from the dropdown, prevent deleting
private keys that are still in use, and close cloud provider link modals
after successful linking.

tests/Feature/ServerPrivateKeyDropdownTest.php

@@ -0,0 +1,100 @@
+<?php
+
+use App\Livewire\Server\PrivateKey\Show;
+use App\Models\InstanceSettings;
+use App\Models\PrivateKey;
+use App\Models\Server;
+use App\Models\Team;
+use App\Models\User;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Facades\Config;
+use Illuminate\Support\Facades\Storage;
+use Illuminate\Support\Once;
+use Livewire\Livewire;
+
+uses(RefreshDatabase::class);
+
+beforeEach(function () {
+    if (! InstanceSettings::query()->whereKey(0)->exists()) {
+        $settings = new InstanceSettings;
+        $settings->id = 0;
+        $settings->save();
+    }
+
+    Once::flush();
+
+    $this->team = Team::factory()->create();
+    $this->user = User::factory()->create();
+    $this->team->members()->attach($this->user->id, ['role' => 'owner']);
+
+    session(['currentTeam' => $this->team]);
+    $this->actingAs($this->user);
+
+    Config::set('cache.default', 'array');
+    Storage::fake('ssh-keys');
+
+    $this->currentPrivateKey = PrivateKey::factory()->create([
+        'team_id' => $this->team->id,
+    ]);
+
+    $this->server = Server::factory()->create([
+        'team_id' => $this->team->id,
+        'private_key_id' => $this->currentPrivateKey->id,
+    ]);
+});
+
+test('server private key page shows highlighted add dropdown actions', function () {
+    Livewire::test(Show::class, ['server_uuid' => $this->server->uuid])
+        ->assertSee('+ Add')
+        ->assertSee('Generate ED25519')
+        ->assertSee('Generate RSA')
+        ->assertSee('Add manually')
+        ->assertSee('Check connection');
+});
+
+test('generating a server private key stores it and refreshes the current view', function () {
+    $component = Livewire::test(Show::class, ['server_uuid' => $this->server->uuid])
+        ->call('generatePrivateKey', 'ed25519')
+        ->assertNoRedirect()
+        ->assertDispatched('success');
+
+    $privateKey = PrivateKey::query()
+        ->where('id', '!=', $this->currentPrivateKey->id)
+        ->firstOrFail();
+
+    expect($privateKey->team_id)->toBe($this->team->id)
+        ->and($privateKey->public_key)->toStartWith('ssh-ed25519');
+
+    $component
+        ->assertDispatched('copyPublicKeyToClipboard', publicKey: $privateKey->public_key)
+        ->assertSee($privateKey->name);
+});
+
+test('server private key page copies generated public keys and shows a copied hint', function () {
+    $view = file_get_contents(resource_path('views/livewire/server/private-key/show.blade.php'));
+
+    expect($view)->toContain('copyPublicKeyToClipboard')
+        ->and($view)->toContain('navigator.clipboard.writeText')
+        ->and($view)->toContain('Public key copied to clipboard.');
+});
+
+test('server private key cards include a copy public key button', function () {
+    $keyData = PrivateKey::generateNewKeyPair('rsa');
+
+    PrivateKey::createAndStore([
+        'team_id' => $this->team->id,
+        'name' => 'Alternative SSH Key',
+        'description' => 'Created by test',
+        'private_key' => $keyData['private_key'],
+    ]);
+
+    Livewire::test(Show::class, ['server_uuid' => $this->server->uuid])
+        ->assertSee('Copy public key')
+        ->assertSee('Alternative SSH Key');
+
+    $view = file_get_contents(resource_path('views/livewire/server/private-key/show.blade.php'));
+
+    expect($view)->toContain('Copy public key')
+        ->and($view)->toContain('$private_key->public_key')
+        ->and($view)->toContain('Public key copied to clipboard.');
+});