feature(update): Version 1.0.1, Smoother progress, better cancellation flow

[theypsilon]

Summary

• Harden update cancellation and reboot flow
  • Keep cancelled updates in a locked stopping state until downloader exits or gets killed after 30 secs.
  • Reboot commands launchs 4 seconds before the count down ends, to compensate for the time the command takes to execute.
• Zaparoo Update version shown in the UI of the Update screen.
• Refined update progress details.
• Refined updater progress display, and status pacing.
  • % now shows decimals when the update is big.
• Smoother progress bar.

Motivation

Screenshots / recordings

Test plan

Go to the Update option from the main screen. To test the cancel flow, try to interrupt the update.

Checklist

• just lint is green (zero warnings)
• just test passes
• If this touches QML, the FPS counter stays green (≥ 55) at 720p+ and ≥ 30 at 240p
• If this could affect the MiSTer build, I considered ARM32 implications (see docs/architecture.md)
• If this adds user-visible strings, they are wrapped in qsTr() (QML) or tr() (C++)
• I have signed the CLA (first-time contributors only)

Summary by CodeRabbit

• Chores
  • Updated an optional app dependency to a newer version.

[coderabbitai]

📝 Walkthrough

Walkthrough

This change updates the optional zaparoo-update dependency version in rust/frontend/Cargo.toml from 0.1.10 to 1.0.1. No other files or exported entities are modified.

Changes

Dependency Update

Layer / File(s)	Summary
Update zaparoo-update dependency rust/frontend/Cargo.toml	Bumped the optional zaparoo-update crate dependency version from 0.1.10 to 1.0.1.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related PRs

• ZaparooProject/zaparoo-frontend#283: Also bumps the zaparoo-update dependency version in the same rust/frontend/Cargo.toml file, from 0.1.9 to 0.1.10.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The template is mostly filled, but the visual-change screenshots section is empty and the checklist is incomplete.	Add screenshots/recordings for the UI change and either complete or explicitly note the remaining checklist items; fill motivation only if applicable.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title matches the version bump and smoother update/cancellation changes in the PR.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[theypsilon]

Mmm, the text from the PR disappeared, Adding it back.