feat: add Integration Credentials CRUD and Deploy UI

Integration Credentials:
- Add IntegrationCredential model with encrypted payload
- Add full CRUD: ManageIntegrationCredentialsAction, 4 Tasks, Controller, Requests
- Add migration for integration_credentials table
- Add Vue pages: Index, Create, Edit
- AI tasks now read API keys from DB instead of .env
- Add sidebar menu item

Deploy UI:
- Add DeployTask with full deploy lifecycle management
- Extend DeployController with index, log, history endpoints
- Add Deploy/Index.vue with live polling and deploy log viewer
- Add sidebar menu item and QuickAction for Sveden

UI:
- Add 'key' icon to SidebarNavItem
- Change deploy button color to amber in Main.vue

app/Containers/Dashboard/UI/WEB/Requests/UpdateIntegrationCredentialRequest.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Containers\Dashboard\UI\WEB\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class UpdateIntegrationCredentialRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    public function rules(): array
+    {
+        return [
+            'provider' => ['required', 'string', 'max:255', 'unique:integration_credentials,provider,' . $this->route('credential')->id],
+            'payload' => ['required', 'array'],
+            'payload.*' => ['required', 'string'],
+            'is_active' => ['boolean'],
+        ];
+    }
+}