feat: search KB before submitting ticket (frontend + backend)

Both frontend and admin ticket creation now show a KB search step
first. User types their issue, Smart Search (com_finder) returns
matching articles. If nothing helps, they click through to the
ticket form with the search query pre-filled as the subject.

Frontend (/support/submit-ticket):
- Search input with live results from #__finder_links
- Article links open in new tab
- "Submit Anyway" shows the ticket form
- Falls back to direct form if Smart Search has no indexed content

Admin (New Ticket modal):
- Same KB search step before the form
- Results as clickable list-group items
- Modal resets on close

Also:
- Added searchKb controller task (both frontend + admin)
- Added "Submit a Ticket" child menu item under Support on install
- Fixed innerHTML → safe DOM methods for search results

Authored-by: Moko Consulting
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/script.php

@@ -771,6 +771,42 @@ class Pkg_MokowaasInstallerScript
 			];
 
 			$db->insertObject('#__menu', $item, 'id');
+			$supportId = (int) $item->id;
+
+			// Create "Submit a Ticket" child menu item
+			if ($supportId)
+			{
+				$db->setQuery('SELECT MAX(rgt) FROM #__menu WHERE client_id = 0');
+				$maxRgt2 = (int) $db->loadResult();
+
+				$child = (object) [
+					'menutype'          => 'mainmenu',
+					'title'             => 'Submit a Ticket',
+					'alias'             => 'submit-ticket',
+					'note'              => '',
+					'path'              => 'support/submit-ticket',
+					'link'              => 'index.php?option=com_mokowaas&view=tickets&layout=submit',
+					'type'              => 'component',
+					'published'         => 1,
+					'parent_id'         => $supportId,
+					'level'             => 2,
+					'component_id'      => $componentId,
+					'checked_out'       => null,
+					'checked_out_time'  => null,
+					'browserNav'        => 0,
+					'access'            => 2,
+					'img'               => '',
+					'template_style_id' => 0,
+					'params'            => '{}',
+					'lft'               => $maxRgt2 + 1,
+					'rgt'               => $maxRgt2 + 2,
+					'home'              => 0,
+					'language'          => '*',
+					'client_id'         => 0,
+				];
+
+				$db->insertObject('#__menu', $child, 'id');
+			}
 		}
 		catch (\Throwable $e)
 		{