Downloads that resume

The download and honesty release. If the AI model download failed partway, it now picks up where it left off instead of starting over.

• A model download that fails partway now resumes from where it stopped. Before, any interruption threw the progress away and started again from zero, so people on slower connections could never finish the larger models.
• The app checks you have enough free space before starting a multi-gigabyte download, and says plainly how much is needed if you do not.
• Download errors now say what actually went wrong in plain words, whether that is disk space, the network, antivirus, or a proxy, and what to do next.
• The download shows its speed and which source it is pulling from, so a slow download is something you can diagnose instead of a mystery.
• Asking to check your system files is no longer ignored when you add a note like 'no rush' or 'not the registry'. Saying 'never mind' still cancels it.
• A question about one setting is no longer misread as being about a different one when one setting name appears inside another word.
• An honest answer when a touchpad setting cannot be read, instead of reporting it as switched off.