1.4.1 — what a real browser showed

Fixes from running the operator in a real Firefox/Chromium session against the Noeza editor:

• Optional arguments left out by the agent (a survey without a limit, a scroll without an amount) no longer fail the whole action.
• Pressing Enter in a form field now submits the form; Enter on a focused button or link activates it.
• "Wait" honours every condition you give it together (element/text AND page ready), and navigate / open-tab / back / forward return only once the page has actually loaded.
• The extension no longer dials the Noeza editor before it has been paired, so the editor's panel no longer fills with refused-connection notices for your own unpaired extension. Pasting the pairing token connects; clearing it hangs up.

Nothing about what the extension sends has changed: page title, URL, text and links go only to the Noeza editor on this machine (ws://127.0.0.1:37421), never to NT-R. Version numbers moved to 1.x.