feat(vikon): rewrite VikonIntegration from scratch — OAuth + core update

- HttpTask: Laravel Http facade with SSL enabled, retry, timeout
- ValidateTokenTask: token check via auth.db-nica.ru
- RefreshTokenTask: token refresh via db-nica.ru
- FilesystemTask: path traversal protection, blocked extensions (PHP/ASP/etc)
- AuthenticateAction: OAuth2 code→token exchange
- CheckAccessAction: token validation + filesystem writability check
- CheckVersionAction: version comparison against remote API
- UpdateCoreAction: ZIP download, Zip Slip protection, atomic sync with rollback
- VikonController: thin controller, 7 endpoints with Session-based token storage
- Routes: access-check, dashboard.auth, throttle:30,1 middleware
- Vue 3 Composition API frontend with progress bar
- Config: all secrets in .env via config/vikon.php
- vikon_core kept as fallback (not deleted)

app/Containers/VikonIntegration/UI/WEB/Routes/web.php

@@ -0,0 +1,17 @@
+<?php
+
+use App\Containers\VikonIntegration\UI\WEB\Controllers\VikonController;
+use Illuminate\Support\Facades\Route;
+
+Route::prefix('/dashboard/vikon-updates')
+    ->name('dashboard.vikon-updates.')
+    ->middleware(['access-check', 'dashboard.auth', 'throttle:30,1'])
+    ->group(function () {
+        Route::get('/', [VikonController::class, 'index'])->name('index');
+        Route::post('/authenticate', [VikonController::class, 'authenticate'])->name('authenticate');
+        Route::post('/refresh-token', [VikonController::class, 'refreshToken'])->name('refresh-token');
+        Route::post('/check-access', [VikonController::class, 'checkAccess'])->name('check-access');
+        Route::post('/check-version', [VikonController::class, 'checkVersion'])->name('check-version');
+        Route::post('/update-module', [VikonController::class, 'updateModule'])->name('update-module');
+        Route::post('/logout', [VikonController::class, 'logout'])->name('logout');
+    });