fix(web): clarify Antigravity download progress

[Lucenx9]

What Changed

Make Antigravity's download progress match the existing Relay Client installer: a rounded, theme-colored native progress bar, a whole-number percentage, and tabular byte counts.

Keep the runtime live-region message stable during download. Byte details update below it and remain available through the progress element's aria-valuetext. No animations or dependencies added.

Why

The current bar falls back to browser styling, has no percentage, and rewrites the live-region message on every byte update. Separating phase feedback from byte counts makes progress easier to read without those repeated live-region changes.

flowchart LR
    State[Installation state] --> Phase[Phase message in live region]
    State --> Bar[Native progress bar]
    State --> Percent[Whole-number percentage]
    State --> Bytes[Byte text and accessible value]

Loading

This changes only the shared web/desktop Settings component. Remote environments keep the same state and commands. Mobile has no Antigravity installer. Other providers, contracts, and setup instructions are unchanged.

UI Changes

PNG screenshots at 2x density. Both render the real component with simulated provider state in an isolated preview, not an end-to-end installation.

Before	After

Verification

• 11 existing ProviderSetupSection.test.tsx tests passed, one worker.
• Targeted lint, formatting and web typecheck passed.
• Fallow audit passed, one thread and web workspace only, with deep CSS disabled. No introduced findings.
• Browser fixture checks passed for 0/55/99/100%, unknown and zero totals, phase changes, cancellation and retry availability. Two byte updates produced zero runtime live-region text changes, down from two. Checked light/dark and 390px width.

Checklist

• This PR is small and focused
• I explained what changed and why
• I included before/after screenshots for any UI changes
• Video not applicable: no new animation or interaction

Model: GPT-5. Harness: Codex in T3 Code.

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Note

Low Risk
Presentation-only changes in the Antigravity settings UI with no auth, install logic, or API contract changes.

Overview
Antigravity runtime download in Settings now shows progress like the Relay installer: a stable phase line, a themed rounded progress bar, a whole-number %, and byte counts on their own line.

During download, the role="status" text stays "Downloading Antigravity." instead of updating on every byte tick. downloadSizeMessage and downloadPercentage drive the bar, the right-aligned percent, the line below, and aria-valuetext on the native <progress> element. The bar uses taller, theme-aware styling (bg-muted / bg-primary) instead of the default browser chrome.

Scope is ProviderSetupSection only; install state and commands are unchanged.

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Note

Clarify Antigravity download progress with percentage and size

• Separates byte counts from the primary status message, which now uses a generic downloading label in ProviderSetupSection.tsx
• Displays the download percentage beside the status text and the downloaded/total megabytes beneath the progress bar
• Adds accessible value text to the progress element to expose the download size to screen readers

^{Macroscope summarized b3a8b60.}

Summary by CodeRabbit

• UI Improvements
  • Updated runtime download status messaging to display “Downloading Antigravity.”
  • Added download percentage and size details during runtime downloads.
  • Restyled the download progress bar with improved visibility and accessibility text.

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[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-04T21:18:24.813325Z	b3a8b60	PR opened

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ℹ️ Recent review info

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📥 Commits

Reviewing files that changed from the base of the PR and between 935917f and b3a8b60.

📒 Files selected for processing (1)

• apps/web/src/components/settings/ProviderSetupSection.tsx

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📝 Walkthrough

Walkthrough

The provider setup section now displays a fixed download status message, a percentage when available, formatted download size, and an updated accessible progress bar.

Changes

Runtime download status

Layer / File(s)	Summary
Download status display apps/web/src/components/settings/ProviderSetupSection.tsx	The downloading message now uses fixed text. Derived values provide formatted size and integer percentage. The status row displays the percentage and size, and the progress bar uses updated styling and aria-valuetext.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: ⚪ Minimal · up to b3a8b

This updates the runtime download display with clearer percentage and byte-progress information while preserving installation behavior. No merge-blocking risk is evident.

Suggested reviewers: rakshithbhat03, t3dotgg

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 2 functions across 1 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the main change: improving Antigravity download progress feedback.
Description check	✅ Passed	The description includes the required What Changed, Why, UI Changes, and Checklist sections. It explains the implementation, scope, verification, screenshots, and why a video is not applicable.
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.

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[macroscopeapp]

Approvability

Verdict: Approved at b3a8b60

Macroscope's review found this PR approvable — This is a focused presentation-only update to the existing Antigravity download UI, adding percentage, byte details, and clearer accessible progress feedback. Installation state, commands, APIs, and persisted behavior remain unchanged.

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