chore(turbo): ingest upstream through main c17d02cff (Fable 5.1)

[gfsaaser24]

Merges 47 upstream commits (9b2d04317..c17d02cff) into the Turbo fork and bumps the fork version line to 0.0.46.

Upstream headlines

• Claude Fable 5.1 — new model entry, the 2.1.257 Claude Code version gate, the model-manifest demotion of fable-5 to legacy, and the new aliases. Taken from upstream wholesale.
• Performance — server config bootstrap traffic halved, full-message reads skipped while streaming, chatty tool-update frames cut ~90%, snapshot activity payloads bounded and read in batches, idle CPU use and provider event leaks fixed.
• Web — settings searchable by detail, pull request list filters, GitHub reference links in markdown, expand/collapse-all on the files surface.
• Mobile — attachment uploads while composing, native image and PDF previews, native iOS video playback.
• Server fixes — server-side thread settling, OpenCode child session cleanup, remote web session cookie isolation, long thread IDs in HTTP routes.

Conflicts and how they were resolved

File	Resolution
apps/server/.../ProjectionSnapshotQuery.ts	Upstream refactored the thread-detail read into a batched, id-first projection with two new sort sites. The Turbo canonical comparator (null sequences sink, then createdAt, lifecycle rank, byte-order id) became one shared helper used by both, so the SQL ORDER BY clauses and the TS comparator still agree.
apps/web/src/routes/_chat.draft.$draftId.tsx	Kept the Turbo null component; the upstream draft view was not reinstated.
apps/web/src/components/chat/ChatComposer.tsx	Kept UsageLimitsMeters and adopted upstream's removal of the inline "Preparing worktree..." label.
apps/web/src/components/files/FileBrowserPanel.tsx	Upstream's toolbar expand/collapse-all coexists with the Turbo alt-click bulk expansion; upstream's helper is imported under an alias.
apps/web/src/components/BranchToolbar.tsx	Kept the Turbo flex-1 selector width (no md: overrides).
apps/web/src/components/BranchToolbarEnvModeSelector.tsx	Took upstream's newer label motion wrapper; the Turbo shrink behaviour is preserved.
apps/web/src/session-logic.ts	Both imports kept.
apps/mobile/app.config.ts	New iOS NSPhotoLibraryAddUsageDescription string rebranded to MOBILE_PRODUCT_NAME.
apps/mobile/.../ThreadComposer.tsx	Took upstream's FilePreviewModal imports, kept the Turbo AppState usage-meter import.

packages/client-runtime/src/turbo/streamPool.test.ts also gained a stub for the new RpcSession.subscribeServerConfig member.

Bonus

Re-adds the two Turbo docs links (internals/t3-turbo.md, internals/t3-turbo-nightly-inbound.md) that docs/README.md had lost on turbo.

Verification

• Seam manifest: 28 seams / 176 checks verified, no manifest edits needed.
• Typecheck clean: contracts, server, web, desktop, shared, client-runtime, mobile.
• Lint clean (--report-unused-disable-directives): warnings only, no errors.
• Tests: scripts turbo suites (32), web src/turbo/ (85), client-runtime src/turbo/ (12), web session-logic + components/files (128), server provider Fable tests (4), server activity-order + ProjectionSnapshotQuery (23).

Model: Claude Fable 5. Harness: Claude Code.

🤖 Generated with Claude Code

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	npm/​expo-document-picker@​57.0.1
	npm/​expo-video@​57.0.3
	npm/​electron@​41.5.0 ⏵ 43.4.1	+6	+18

View full report

[github-actions]

Thread transfer impact

✅ Thread transfer remains within every enforced ceiling.

ℹ️ No successful main baseline artifact is available yet. This run establishes the initial measurement.

Provider	Metric	Main baseline	This PR	Impact	PR ceiling
Codex	Total thread wire	—	13.4 KiB	—	15.1 KiB	✅
Codex	Thread snapshot wire	—	6.9 KiB	—	7.3 KiB	✅
Codex	Live turn WebSocket wire	—	6.5 KiB	—	7.8 KiB	✅
Codex	Live turn WebSocket decoded	—	57.0 KiB	—	66.4 KiB	✅
Codex	Live turn messages	—	10	—	21	✅
Claude	Total thread wire	—	13.1 KiB	—	15.1 KiB	✅
Claude	Thread snapshot wire	—	6.9 KiB	—	7.3 KiB	✅
Claude	Live turn WebSocket wire	—	6.2 KiB	—	7.8 KiB	✅
Claude	Live turn WebSocket decoded	—	55.5 KiB	—	66.4 KiB	✅
Claude	Live turn messages	—	8	—	21	✅

Baseline: unavailable · PR result: c10d682 · 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: 109.4 KiB
• Claude decoded thread snapshot: 110.1 KiB

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