fix(perfexcrm module): align version to 3.0.1, unify entrypoint, and harden routes/views

- Bump DESK_MOLONI version to 3.0.1 across module
- Normalize hooks to after_client_* and instantiate PerfexHooks safely
- Fix OAuthController view path and API client class name
- Add missing admin views for webhook config/logs; adjust view loading
- Harden client portal routes and admin routes mapping
- Make Dashboard/Logs/Queue tolerant to optional model methods
- Align log details query with existing schema; avoid broken joins

This makes the module operational in Perfex (admin + client), reduces 404s,
and avoids fatal errors due to inconsistent tables/methods.

modules/desk_moloni/views/admin/oauth_setup.php

@@ -0,0 +1,18 @@
+<?php defined('BASEPATH') or exit('No direct script access allowed'); ?>
+
+<div class="row">
+    <div class="col-md-12">
+        <div class="panel panel-default">
+            <div class="panel-heading">
+                <h3 class="panel-title">OAuth Setup - Desk-Moloni</h3>
+            </div>
+            <div class="panel-body">
+                <p>OAuth setup functionality will be available here.</p>
+                <p>Please configure your Moloni API credentials in the Configuration section.</p>
+                <a href="<?php echo admin_url('desk_moloni/admin/config'); ?>" class="btn btn-primary">
+                    Go to Configuration
+                </a>
+            </div>
+        </div>
+    </div>
+</div>