refactor: js plugin api

parsers/js/api_playwright_stub.go

@@ -0,0 +1,19 @@
+//go:build no_playwright
+
+package js
+
+import (
+	"github.com/charmbracelet/log"
+	"github.com/dop251/goja"
+)
+
+var jsPlaywright = func(vm *goja.Runtime, _ *log.Logger) *goja.Object {
+	pwObj := vm.NewObject()
+	unsupported := vm.ToValue(map[string]any{
+		"error": "playwright is not supported in this build",
+	})
+	pwObj.Set("get", func(call goja.FunctionCall) goja.Value {
+		return unsupported
+	})
+	return pwObj
+}