Self-hosted auto-updates from Gitea via PUC + proprietary licence

Vendors YahnisElsts/plugin-update-checker v5.7 under vendor/ and wires
it to poll updates.json on the repo main branch. WP surfaces new
versions via Dashboard → Updates on its normal twice-daily cadence.

PUC is vendored (not a submodule) so Gitea's archive/main.zip — the
download target — includes it.

Also relicenses from GPL-2.0-or-later to a proprietary licence granting
use only to authorised sites, with all other rights reserved. Plugin
URI + Author URI switched from the placeholder github.com URL to the
canonical Gitea repo.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

vendor/plugin-update-checker/js/debug-bar.js

@@ -0,0 +1,54 @@
+jQuery(function($) {
+
+	function runAjaxAction(button, action) {
+		button = $(button);
+		var panel = button.closest('.puc-debug-bar-panel-v5');
+		var responseBox = button.closest('td').find('.puc-ajax-response');
+
+		responseBox.text('Processing...').show();
+		$.post(
+			ajaxurl,
+			{
+				action  : action,
+				uid     : panel.data('uid'),
+				_wpnonce: panel.data('nonce')
+			},
+			function(data) {
+				//The response contains HTML that should already be escaped in server-side code.
+				//phpcs:ignore WordPressVIPMinimum.JS.HTMLExecutingFunctions.html
+				responseBox.html(data);
+			},
+			'html'
+		);
+	}
+
+	$('.puc-debug-bar-panel-v5 input[name="puc-check-now-button"]').on('click', function() {
+		runAjaxAction(this, 'puc_v5_debug_check_now');
+		return false;
+	});
+
+	$('.puc-debug-bar-panel-v5 input[name="puc-request-info-button"]').on('click', function() {
+		runAjaxAction(this, 'puc_v5_debug_request_info');
+		return false;
+	});
+
+
+	// Debug Bar uses the panel class name as part of its link and container IDs. This means we can
+	// end up with multiple identical IDs if more than one plugin uses the update checker library.
+	// Fix it by replacing the class name with the plugin slug.
+	var panels = $('#debug-menu-targets').find('.puc-debug-bar-panel-v5');
+	panels.each(function() {
+		var panel = $(this);
+		var uid = panel.data('uid');
+		var target = panel.closest('.debug-menu-target');
+
+		//Change the panel wrapper ID.
+		target.attr('id', 'debug-menu-target-puc-' + uid);
+
+		//Change the menu link ID as well and point it at the new target ID.
+		$('#debug-bar-menu').find('.puc-debug-menu-link-' + uid)
+			.closest('.debug-menu-link')
+			.attr('id', 'debug-menu-link-puc-' + uid)
+			.attr('href', '#' + target.attr('id'));
+	});
+});