fix: load Composer autoloader in CliFramework constructor (#248)

CLI tools failed with "Class MokoEnterprise\SourceResolver not found"
because the Composer autoloader was never loaded. The require_once
for CliFramework.php loaded the framework but not the PSR-4 autoloader
that maps MokoEnterprise\ to lib/Enterprise/.

Adding require_once for vendor/autoload.php in the constructor ensures
all Enterprise classes (SourceResolver, etc.) are available to every
CLI tool that extends CliFramework.

Closes #248

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

lib/Enterprise/CliFramework.php

@@ -171,6 +171,13 @@ abstract class CliFramework
      */
     public function __construct(string $name = '', string $version = '04.00.15')
     {
+        // Load Composer autoloader for Enterprise classes (SourceResolver, etc.)
+        $autoloader = __DIR__ . '/../../vendor/autoload.php';
+
+        if (file_exists($autoloader)) {
+            require_once $autoloader;
+        }
+
         $this->scriptName    = $name ?: basename($_SERVER['argv'][0] ?? 'script', '.php');
         $this->scriptVersion = $version;
         $this->startTime     = microtime(true);