chore(sync): import upstream main for RTVision 0.0.61

[kalvenschraut]

Sync rtvision with pingdotgg/t3code main through cb1a3f346, bringing 17 upstream commits into RTVision 0.0.61. Git merged all 14 files both sides touched without conflicts, so this is a single merge commit with no overlay. The fork-vs-upstream numstat after the merge matches fork-vs-old-base across all 341 fork files.

What arrives from upstream

Features

• Interactive 3D device workspace with iPhone/iPad frames, a controls rail, and trackpad scrolling; three is lazy-loaded when the device viewport opens (feat(web): add an interactive 3D device workspace pingdotgg/t3code#12787).
• Mobile environment and provider updates under Settings → Environments (feat(mobile): manage environment and provider updates pingdotgg/t3code#13302). The release check reads RTVision/t3code releases through the fork's cliRelease.ts override.
• Standard OpenTelemetry kill switch (OTEL_SDK_DISABLED, none exporters) on server and desktop (feat(observability): honor the OpenTelemetry kill switch pingdotgg/t3code#13355).
• Live Activities and agent notifications in mobile showcase screenshots (feat(mobile): capture Live Activities and agent notifications in showcase screenshots pingdotgg/t3code#13316).

Fixes

• Review diff previews keep racy edits (fix(server): preserve racy edits in review diff previews pingdotgg/t3code#12613); old agent alerts no longer replay on restart (fix(server): stop replaying old agent alerts on restart pingdotgg/t3code#13340); new agent sessions use the visible preview browser (fix(preview): use the visible browser for new agent sessions pingdotgg/t3code#13064); provider compatibility ranges restored for every harness (fix(providers): restore compatibility ranges for every harness pingdotgg/t3code#13328).
• Linked pull requests show repository names (fix(web): show repository names on linked pull requests pingdotgg/t3code#13061); composer chip rings no longer clip (fix(web): composer chip rings no longer clip at the editor edge pingdotgg/t3code#13301); switches report their state to screen readers (fix(web): switches announce their real state to screen readers pingdotgg/t3code#11580); brain icon for effort (fix(web): use a brain icon for the effort dropdown pingdotgg/t3code#13309); previous worktree branch on a second line (fix(web): show previous worktree branch on second line pingdotgg/t3code#13314).
• SnapShot shortcut helper no longer adds a macOS Dock icon (fix(desktop): SnapShot shortcut helper no longer adds a Dock icon on macOS pingdotgg/t3code#13286); trailing quoted empty CSV records preserved (fix(shared): preserve final quoted empty CSV records pingdotgg/t3code#11425).
• Release tests shard like PR CI (fix(ci): shard release tests like pull request CI pingdotgg/t3code#13321). The fork's resolve_commit guard in release.yml stays.

Auto-merged shared files

release.yml, desktop IPC (channels.ts, preload.ts, contracts/src/ipc.ts), DesktopBackendConfiguration(.test).ts, DesktopWindow.test.ts, server.test.ts, cli/pair.ts, ProviderRegistry.test.ts, docs/user/updating.md (fork @rtvision/t3 commands kept, upstream mobile section added), and the shared/client-runtime package exports.

Validation

Typecheck passes for server, web, desktop, mobile, contracts, shared, and client-runtime. Lint has no errors on the 330 fork-diverging files, and formatting is clean. Tests pass for the shared files: desktop (68) and server ProviderRegistry, server.test, cli/config (267). No browser verification. No version bump here; bump on rtvision after merge.

Written by Claude Opus 5.5 through Claude Code in T3 Code.

🤖 Generated with Claude 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	13.5 KiB	13.5 KiB	+47 B (+0.3%)	15.1 KiB	✅
Codex	Thread snapshot wire	7.1 KiB	7.1 KiB	−3 B (−0.0%)	7.3 KiB	✅
Codex	Live turn WebSocket wire	6.4 KiB	6.5 KiB	+50 B (+0.8%)	7.8 KiB	✅
Codex	Live turn WebSocket decoded	56.2 KiB	56.3 KiB	+88 B (+0.2%)	66.4 KiB	✅
Codex	Live turn messages	8	10	+2 (+25.0%)	21	✅
Claude	Total thread wire	13.5 KiB	13.5 KiB	+29 B (+0.2%)	15.1 KiB	✅
Claude	Thread snapshot wire	7.1 KiB	7.1 KiB	−3 B (−0.0%)	7.3 KiB	✅
Claude	Live turn WebSocket wire	6.4 KiB	6.5 KiB	+32 B (+0.5%)	7.8 KiB	✅
Claude	Live turn WebSocket decoded	57.0 KiB	57.1 KiB	+44 B (+0.1%)	66.4 KiB	✅
Claude	Live turn messages	9	10	+1 (+11.1%)	21	✅

Baseline: 0a25393 · PR result: bba700e · 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: 113.9 KiB
• Claude decoded thread snapshot: 114.6 KiB

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