fix: disable set -e during custom_script execution

Custom scripts may have commands that return non-zero exit codes
even when successful (e.g., checking if something exists). Wrapping
with set +e / set -e prevents these from aborting the entire install.

Author: fullstackjam

src/hooks.server.ts

@@ -61,7 +61,9 @@ ${
 			? `
 echo ""
 echo "=== Running Custom Post-Install Script ==="
+set +e
 ${customScript}
+set -e
 `
 			: ''
 	}