feat: add cloud-init scripts management UI in Security section

Add comprehensive cloud-init script management interface in the Security
section, allowing users to create, edit, delete, and reuse cloud-init
scripts across their team.

New Components:
- CloudInitScripts: Main listing page with grid view of scripts
- CloudInitScriptForm: Modal form for create/edit operations

Features:
- Create new cloud-init scripts with name and content
- Edit existing scripts
- Delete scripts with confirmation (requires typing script name)
- View script preview (first 200 characters)
- Scripts are encrypted in database
- Full authorization using CloudInitScriptPolicy
- Real-time updates via Livewire events

UI Location:
- Added to Security section nav: /security/cloud-init-scripts
- Positioned between Cloud Tokens and API Tokens
- Follows existing security UI patterns

Files Created:
- app/Livewire/Security/CloudInitScripts.php
- app/Livewire/Security/CloudInitScriptForm.php
- resources/views/livewire/security/cloud-init-scripts.blade.php
- resources/views/livewire/security/cloud-init-script-form.blade.php

Files Modified:
- routes/web.php - Added route
- resources/views/components/security/navbar.blade.php - Added nav link

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

resources/views/components/security/navbar.blade.php

@@ -11,6 +11,11 @@
                     <button>Cloud Tokens</button>
                 </a>
             @endcan
+            @can('viewAny', App\Models\CloudInitScript::class)
+                <a href="{{ route('security.cloud-init-scripts') }}">
+                    <button>Cloud-Init Scripts</button>
+                </a>
+            @endcan
             <a href="{{ route('security.api-tokens') }}">
                 <button>API Tokens</button>
             </a>