Fix PHP 8.5 uksort deprecation and namespace/object refs in upgrade step

- upgrade_version_sort now returns version_compare() int (-1/0/1) not bool
- upgrade_package_sort call uses fully-qualified Bitweaver\Install namespace
- install_upgrade.tpl uses gBitInstaller->getVersion() (correct in install context)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

3 files changed, 24 insertions, 5 deletions

diff --git a/includes/classes/BitInstaller.php b/includes/classes/BitInstaller.php
index 9574956..75df5b1 100755
--- a/includes/classes/BitInstaller.php
+++ b/includes/classes/BitInstaller.php
@@ -285,6 +285,25 @@ class BitInstaller extends BitSystem {
 	}
 
 	/**
+	 * getVersion reads the installed version from DB during BIT_INSTALL (loadConfig is blocked, so we query directly).
+	 */
+	public function getVersion( ?string $pPackage = null, $pDefault = BITWEAVER_VERSION ): string {
+		$config = empty( $pPackage ) ? 'bitweaver_version' : "package_{$pPackage}_version";
+		if( !empty( $this->mDb ) ) {
+			try {
+				$query = "SELECT `config_value` FROM `" . BIT_DB_PREFIX . "kernel_config` WHERE `config_name`=?";
+				$result = $this->mDb->getOne( $query, [ $config ] );
+				if( !empty( $result ) ) {
+					return $result;
+				}
+			} catch( \Throwable $e ) {
+				// kernel_config may not exist during a fresh install
+			}
+		}
+		return $pDefault;
+	}
+
+	/**
 	 * upgradePackage
 	 *
 	 * @param string $pPackage
@@ -309,7 +328,7 @@ class BitInstaller extends BitSystem {
 	public function upgradePackageVersions( $pPackage ) {
 		if( !empty( $pPackage ) && !empty( $this->mPackageUpgrades[$pPackage] )) {
 			// make sure everything is in the right order
-			uksort( $this->mPackageUpgrades[$pPackage], 'upgrade_version_sort' );
+			uksort( $this->mPackageUpgrades[$pPackage], 'Bitweaver\Install\upgrade_version_sort' );
 
 			foreach( array_keys( $this->mPackageUpgrades[$pPackage] ) as $version ) {
 				// version we are upgrading from
@@ -520,7 +539,7 @@ class BitInstaller extends BitSystem {
 						if( !empty( $sql ) ) $sql = null;
 						break;
 					case 'QUERY':
-						uksort( $step, 'upgrade_query_sort' );
+						uksort( $step, 'Bitweaver\Install\upgrade_query_sort' );
 						foreach( array_keys( $step ) as $dbType ) {
 							if( $dbType == 'MYSQL' && preg_match( '/mysql/', $gBitDbType )) {
 								$sql = $step[$dbType];
@@ -686,7 +705,7 @@ function upgrade_package_sort( $a, $b ) {
  * @return numeric sort direction
  */
 function upgrade_version_sort( $a, $b ) {
-	return version_compare( $a, $b, '>' );
+	return version_compare( $a, $b );
 }
 
 /**
diff --git a/includes/install_upgrade.php b/includes/install_upgrade.php
index 7ccfbf1..2907c18 100755
--- a/includes/install_upgrade.php
+++ b/includes/install_upgrade.php
@@ -19,7 +19,7 @@ if( !empty( $_REQUEST['upgrade_packages'] )) {
 
 	if( !empty( $_REQUEST['packages'] ) && is_array( $_REQUEST['packages'] )) {
 		// ensure all packages are in the right order before we start applying upgrades
-		uasort( $_REQUEST['packages'], 'upgrade_package_sort' );
+		uasort( $_REQUEST['packages'], 'Bitweaver\Install\upgrade_package_sort' );
 
 		foreach( $_REQUEST['packages'] as $package ) {
 			if( $error = $gBitInstaller->upgradePackageVersions( $package )) {
diff --git a/templates/install_upgrade.tpl b/templates/install_upgrade.tpl
index 3a31f39..f1abdc1 100755
--- a/templates/install_upgrade.tpl
+++ b/templates/install_upgrade.tpl
@@ -15,7 +15,7 @@
 					<h3>{$package}</h3>
 					<input type="hidden" name="packages[]" value="{$package}" />
 					<dl>
-						<dt>{$gBitSystem->getVersion($package)}</dt>
+						<dt>{$gBitInstaller->getVersion($package)}</dt>
 						<dd><small>Currently installed version</small></dd>
 						{foreach from=$upgrade item=data key=version}
 							<dt>{$data.version}</dt>