Hidden ^ command to download 7digital zip files

[Jason-Abbott]

Add a hidden TUI command bound to ^ (caret) that:

1. Opens a modal/text input prompting for a 7digital download ID (e.g. 844708572 from https://us.7digital.com/download/844708572)
2. On Enter, navigates to https://us.7digital.com/download/<id>
3. Validates the page/download exists
4. Finds and downloads all zip files linked on the page
5. Saves them to an appropriate location

Tasks

• Inspect 7digital download page to understand structure and zip file links
• Add ^ keybinding to TUI
• Create modal/text input for download ID entry (3 fields: ID, email, password)
• Implement page fetching and zip link extraction
• Implement zip file downloading
• Wire it all together

Protocol Notes

Login

• POST https://us.7digital.com/signin with form body: referrer=&email=<email>&password=<password>
• Response: 302 + Set-Cookie: session=<JWT>; secureSession=<JWT> (HttpOnly, .7digital.com)

Download Page

• GET https://us.7digital.com/download/<orderId> with cookies
• Parse HTML: form[action="/download/release/<releaseId>"] + input[name=formatId] value

Download ZIP

• GET https://us.7digital.com/download/release/<releaseId>?formatId=<formatId> with cookies
• 302 → signed media.geo.7digital.com URL (server generates OAuth sig)
• 200 with Content-Disposition: attachment; filename="Artist - Album.zip"

Credentials

• Store 7digital_user and 7digital_pass in DB settings table
• Prompt in TUI modal if not set

👾 This issue is managed by Jig. Edits made here will be overwritten.