Add Asset Management app

Assets from purchase invoice lines, straight-line depreciation/amortization with salvage value, disposals, and [Asset Mgmt] sources in Batch GL Entries. Green third workspace with an app access guard.

app/login/index.php

@@ -3,11 +3,11 @@
   require '../config.php';
   require_once '../assets/utils/otp_policy.php';
   require '../include_header.php';
+  require_once '../assets/utils/app_registry.php';
   // successful login — redirect based on app_access
   if(!empty($_SESSION["login_status"])){
-    $redirect = ($_SESSION['login_app_access'] ?? 'wms') === 'accounting'
-      ? $server_url . 'ac_dashboard/index.php'
-      : $server_url . 'dashboard/index.php';
+    $login_app = app_default_for_access($app_registry, $_SESSION['login_app_access'] ?? 'wms');
+    $redirect  = $server_url . app_home_path($app_registry, $login_app);
     header('Location: ' . $redirect);
     exit;
   }