fix: features & quality batch (#95, #103, #104, #107)

#95 — ACL + Options:
- Add access.xml (core actions + mokoog.batch / mokoog.import custom actions)
- Add config.xml (Permissions tab + note pointing settings to the system plugin)
- Declare both in the manifest; Batch/ImportExport controllers now check the
  custom actions with a fallback to the prior core checks (no lockout)

#103 — CSV import is now reachable:
- Add an Import toolbar button that toggles a multipart file-upload form
  (jform[csv_file]) posting to importexport.import with a CSRF token

#104 — Dead code + disk leak:
- Delete unused ImageGenerator class and JsonLdBuilder::buildOrganization()
- Add ImageHelper::pruneOldFiles() (deletes generated images older than 30d)
  and call it on content save so the generated-image cache is bounded

#107 — Packaging:
- Declare language/en-US in the component manifest (was never installed)
- Remove undeclared empty stub dirs src/Field, src/Service

source/packages/com_mokoog/tmpl/tags/default.php

@@ -173,6 +173,23 @@ $token = Session::getFormToken();
     </div>
 </div>
 
+<!-- CSV Import -->
+<div id="mokoog-import-panel" style="display:none;" class="card mt-3">
+    <div class="card-body">
+        <h4><?php echo Text::_('COM_MOKOOG_TOOLBAR_IMPORT'); ?></h4>
+        <form action="<?php echo Route::_('index.php?option=com_mokoog&task=importexport.import'); ?>" method="post" enctype="multipart/form-data" class="mt-2">
+            <div class="mb-2">
+                <input type="file" name="jform[csv_file]" accept=".csv" class="form-control" required>
+            </div>
+            <button type="submit" class="btn btn-primary">
+                <span class="icon-upload" aria-hidden="true"></span>
+                <?php echo Text::_('COM_MOKOOG_TOOLBAR_IMPORT'); ?>
+            </button>
+            <?php echo HTMLHelper::_('form.token'); ?>
+        </form>
+    </div>
+</div>
+
 <script>
 document.addEventListener('DOMContentLoaded', function() {
     // Intercept the batch.generate toolbar button
@@ -182,6 +199,13 @@ document.addEventListener('DOMContentLoaded', function() {
             mokoogBatchGenerate();
             return;
         }
+        if (task === 'mokoog.showimport') {
+            var ip = document.getElementById('mokoog-import-panel');
+            if (ip) {
+                ip.style.display = (ip.style.display === 'none' ? 'block' : 'none');
+            }
+            return;
+        }
         if (origSubmitbutton) {
             origSubmitbutton(task);
         }