Save recent generations in local history

[naheel0]

The generator flow does not persist recent repository URLs or outputs, so repeated use requires re-entering the same repository details.

Proposed scope

• Store recent generations locally in the browser.
• Show a small history panel or dropdown inside the generate page.
• Allow reloading a previous repo URL into the form.

Acceptance criteria

• Recent generations survive a page refresh.
• A user can reopen at least the last few generated repositories.
• History can be cleared from the UI.