Disable symlink for path repository in composer

Force Composer to copy files instead of symlink so vendor/
is properly included in release package (lib/ is excluded).

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

composer.json

@@ -13,7 +13,10 @@
     "repositories": [
         {
             "type": "path",
-            "url": "lib/wc-licensed-product-client"
+            "url": "lib/wc-licensed-product-client",
+            "options": {
+                "symlink": false
+            }
         }
     ],
     "require": {