#507 Fix/gui keyboard hint

[Anonymous]

Originally created by: thesageak

Pull Request

Slice

• Repo: doberman-core
• Feature / Slice: [#434] — auth dialog keyboard shortcut hint
• Plan reference: issue [#434]

What this PR does

Adds a muted keyboard shortcut hint below the auth dialog button row:

Tab/Arrows: switch - Enter: confirm - Esc: deny

The dialog height now accounts for the rendered hint so wrapped text is not clipped. Existing keyboard bindings and deny-first behavior are unchanged.

Tests added (run in CI)

• Added faked canvas coverage verifying that the button row creates a text item containing Enter.
• Updated the fake canvas to support text tracking and bbox().
• pytest tests/unit/test_gui_prompter.py — 35 passed
• Full PR checks passed locally.

Public-release safety (doberman-core only)

• [x] Contains nothing from the "not allowed" list: no enterprise/hosted code, no proprietary detection, no customer data, no secrets, no commercial-license code
• [x] Core still builds/tests/runs with NO enterprise package installed

Security checklist

• [x] Fails closed on error / uncertainty
• [x] No secret, full file, or unredacted prompt logged or committed
• [x] Any guardrail/learning change is raise-only (no silent loosening)
• [x] Every BLOCK/AUTH carries reason codes + a human explanation
• [x] doberman-core does not import doberman_enterprise

Edge cases covered / Deviations from plan / Risks introduced

• Keyboard hint can wrap within the dialog content width without being clipped.
• No changes to authorization decisions or keyboard bindings.
• No known risks introduced.

Closes [#434]

[Anonymous]

Ticket changed by: fu351

• status: open --> closed

[Anonymous]

Originally posted by: fu351

Thanks @thesageak, this is in! Measuring the drawn hint with canvas.bbox and growing the window from that, instead of adding a guessed constant, is the right way to do it, a font or DPI change can't clip it. One thing I added on top: the ASCII test I pointed you at only covered the challenge message, not this label, so I landed your commits as they are through [#510] with one extra assert that pins the hint to ASCII, nothing of yours changed. If you want another one in the same file, [#432] (level-3) gives the dialog a proper Doberman taskbar icon. Feel free to star the repo if it's been useful.