Plugin: self-hosted auto-updates from Gitea via PUC (hc-8gb)

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. Folder rename on install is handled by
PUC's built-in upgrader_source_selection filter.

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

vendor/plugin-update-checker/load-v5p7.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace YahnisElsts\PluginUpdateChecker\v5p7;
+
+use YahnisElsts\PluginUpdateChecker\v5\PucFactory as MajorFactory;
+use YahnisElsts\PluginUpdateChecker\v5p7\PucFactory as MinorFactory;
+
+require __DIR__ . '/Puc/v5p7/Autoloader.php';
+new Autoloader();
+
+require __DIR__ . '/Puc/v5p7/PucFactory.php';
+require __DIR__ . '/Puc/v5/PucFactory.php';
+
+//Register classes defined in this version with the factory.
+foreach (
+	array(
+		'Plugin\\UpdateChecker' => Plugin\UpdateChecker::class,
+		'Theme\\UpdateChecker'  => Theme\UpdateChecker::class,
+
+		'Vcs\\PluginUpdateChecker' => Vcs\PluginUpdateChecker::class,
+		'Vcs\\ThemeUpdateChecker'  => Vcs\ThemeUpdateChecker::class,
+
+		'GitHubApi'    => Vcs\GitHubApi::class,
+		'BitBucketApi' => Vcs\BitBucketApi::class,
+		'GitLabApi'    => Vcs\GitLabApi::class,
+	)
+	as $pucGeneralClass => $pucVersionedClass
+) {
+	MajorFactory::addVersion($pucGeneralClass, $pucVersionedClass, '5.7');
+	//Also add it to the minor-version factory in case the major-version factory
+	//was already defined by another, older version of the update checker.
+	MinorFactory::addVersion($pucGeneralClass, $pucVersionedClass, '5.7');
+}
+