chore: sync upstream main

[tarik02]

What Changed

• Merged 30 upstream-only commits through pingdotgg/t3code@184d8ef33.
• Added desktop browser favicons, preview discovery updates, mobile task-setting sheets, and auto-settle controls.
• Brought in mobile OTA, keyboard suggestion, markdown, Live Activity, Windows packaging, and web UI fixes.
• Preserved fork progressive thread history alongside upstream Plan Mode and auto-settle preferences.

Why

Updates the fork to current upstream while preserving fork-only behavior in overlapping mobile settings code.

UI Changes

This includes upstream UI changes. Screenshots were not captured because browser verification was not requested.

Verification

• lowio ./node_modules/.bin/vp run --filter @t3tools/mobile typecheck
• lowio ./node_modules/.bin/vp lint --report-unused-disable-directives apps/mobile/src/features/settings/SettingsRouteScreen.tsx apps/mobile/src/persistence/mobile-preferences.ts

Checklist

• This PR is small and focused
• I explained what changed and why
• I included before/after screenshots for any UI changes
• I included a video for animation/interaction changes

Made with gpt-5.6-sol using the Codex harness in T3 Code.

[github-actions]

Thread transfer impact

✅ Thread transfer remains within every enforced ceiling.

Provider	Metric	Main baseline	This PR	Impact	PR ceiling
Codex	Total thread wire	10.7 KiB	10.7 KiB	+19 B (+0.2%)	15.1 KiB	✅
Codex	Thread snapshot wire	4.8 KiB	4.8 KiB	+3 B (+0.1%)	7.3 KiB	✅
Codex	Live turn WebSocket wire	5.9 KiB	5.9 KiB	+16 B (+0.3%)	7.8 KiB	✅
Codex	Live turn WebSocket decoded	51.7 KiB	51.7 KiB	0 B (0.0%)	66.4 KiB	✅
Codex	Live turn messages	11	11	0 (0.0%)	21	✅
Claude	Total thread wire	10.7 KiB	10.5 KiB	−206 B (−1.9%)	15.1 KiB	✅
Claude	Thread snapshot wire	4.8 KiB	4.8 KiB	0 B (0.0%)	7.3 KiB	✅
Claude	Live turn WebSocket wire	5.9 KiB	5.7 KiB	−206 B (−3.4%)	7.8 KiB	✅
Claude	Live turn WebSocket decoded	52.6 KiB	51.1 KiB	−1.5 KiB (−2.8%)	66.4 KiB	✅
Claude	Live turn messages	11	10	−1 (−9.1%)	21	✅

Baseline: 13fc404 · PR result: e9126a6 · Source CI: success

Scenario and decoded snapshot size

10 historical turns, 5 command tools per turn, 878.9 KiB retained MCP result per historical turn, and a 1.05 MiB retained result in the measured turn.

• Codex decoded thread snapshot: 76.2 KiB
• Claude decoded thread snapshot: 76.6 KiB

Updated in place by a trusted workflow. PR artifacts are strictly validated and never executed.

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 8a7261449f

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

[chatgpt-codex-connector]

Select the Android package from the requested scheme

When the optional scheme is t3code-preview or t3code, this command still explicitly targets the development package, so am start fails if only the requested variant is installed or opens the wrong app if both are present. The variant mapping in apps/mobile/app.config.ts assigns those schemes to com.t3tools.t3code.preview and com.t3tools.t3code; derive or accept the package identifier together with the scheme.

Useful? React with 👍 / 👎.