feat(web): add iPhone Duo 3D controls

[juliusmarminge]

iPhone Duo has two physical displays and a hinge, so a static device frame cannot show which surface is active or let someone inspect and fold the device. This adds an articulated 3D model, fold and stance controls, pinch hinge adjustment, and live screen and touch handoff as the model turns.

The server pins the official expo-device-hub@0.12.0, which includes the native Duo orientation contract from #134 and Android fold support from #135. It installs through the same toolchain on local and SSH device hosts. The prototype archive override and patch have been removed. Unsupported hosts and browsers retain the flat view.

The web and desktop clients share the Duo viewer and stream logic through client-runtime. The viewer uses the actual hinge planes for rest positions, keeps touch input on the native elected display, and retains one active video decoder. Native command acknowledgments, screen configuration, and a fresh frame must agree before input moves to the other surface. Presets, gestures, reconnects, and teardown share the existing serialized control and cleanup paths. The Restore 3D view control remains available with Duo stands. Mobile remains a flat device viewer.

Verification

• Focused Duo stream, controls, scene, viewer, proxy, and installer tests passed. Scoped server, web, and client-runtime typechecks, targeted lint, and dependency checks passed.
• A fresh npm install resolved expo-device-hub@0.12.0. Its published tarball ran in isolated dev state against the iOS 27.1 iPhone Duo simulator. Open, Closed, Laptop, Tent, and Restore 3D view were exercised in the T3 browser panel.
• The same isolated Hub ran a Pixel 9 Pro Fold Android emulator. Its fold API reported closed at 0° and opened at 180°; the live T3 stream changed between 1080 × 2424 and 2076 × 2152 without reopening the panel. T3 currently keeps the fold API off its authenticated device-panel proxy, so posture changes for this check used Hub's loopback endpoint.
• React Doctor reported an existing complexity warning and a camera-projection warning. The projection warning is a false positive: updateCamera() calls camera.updateProjectionMatrix() after setting the aspect ratio in fit().

Before: the earlier flat/slider prototype in the base device panel. Before recording.

After: the released Hub driving the articulated model and native posture controls.

After recording: Duo changing from Open to Laptop posture on Hub 0.12.0

Android fold verification:

Model: GPT-6. Harness: Codex.

[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	−33 B (−0.2%)	15.1 KiB	✅
Codex	Thread snapshot wire	7.1 KiB	7.1 KiB	+2 B (+0.0%)	7.3 KiB	✅
Codex	Live turn WebSocket wire	6.5 KiB	6.4 KiB	−35 B (−0.5%)	7.8 KiB	✅
Codex	Live turn WebSocket decoded	56.3 KiB	56.2 KiB	−44 B (−0.1%)	66.4 KiB	✅
Codex	Live turn messages	10	9	−1 (−10.0%)	21	✅
Claude	Total thread wire	13.5 KiB	13.5 KiB	−5 B (−0.0%)	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	6.4 KiB	−2 B (−0.0%)	7.8 KiB	✅
Claude	Live turn WebSocket decoded	57.0 KiB	57.0 KiB	0 B (0.0%)	66.4 KiB	✅
Claude	Live turn messages	9	9	0 (0.0%)	21	✅

Baseline: 72447f2 · PR result: 6df09fb · 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: 114.0 KiB
• Claude decoded thread snapshot: 114.7 KiB

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

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📝 Walkthrough

Walkthrough

This change adds iPhone Duo model support, including panel streaming, native pose controls, and an interactive 3D viewer. It also updates the device proxy, web controls, model registry, package exports, and user guide.

Changes

iPhone Duo device support

Layer / File(s)	Summary
Device identification, controls, and streaming packages/client-runtime/src/device/model.ts, packages/client-runtime/src/device/duoControl.ts, packages/client-runtime/src/device/stream.ts, apps/server/src/device/DeviceHubProxy.ts, apps/server/src/device/DeviceToolchain.ts, packages/client-runtime/package.json, related tests	Recognizes the iPhone Duo model and adds queued pose and pinch controls. The stream client validates Duo metadata and control replies, routes panel feeds, tracks orientation changes, and ignores stale feed output. The proxy allows panel 1 and 3 AVCC routes.
Duo scene geometry and view snapping packages/client-runtime/src/device/duoScene.ts, packages/client-runtime/src/device/duoSnap.ts, related tests	Adds Duo hinge and display scene operations, panel input mapping, resting frames, and view snap selection. Tests cover scene geometry, input mapping, and snap behavior.
Duo viewer rendering and interaction packages/client-runtime/src/device/duoViewer.ts, packages/client-runtime/src/device/duoViewer.test.ts	Adds the Three.js viewer, including model loading, hinge and orbit animation, screen framing, panel handoffs, frame updates, and disposal. Tests cover viewer lifecycle, pose changes, handoffs, and frame selection.
Web interface, model asset, and user guidance apps/web/src/components/device/DeviceStreamView.tsx, apps/web/src/components/device/DeviceDuo*, apps/web/src/components/device/DeviceControlsRail.tsx, apps/web/src/components/device/deviceModels.ts, apps/web/src/components/device/models/sources.json, docs/user/devices.md	Registers the Duo model and connects its viewer, stream state, and folding controls to the device view. Updates controls-rail scrolling and documents Duo 3D viewing and interaction.

Priority: ➖ Normal

Estimated code review effort: 4 (Complex) | ~60 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant DeviceStreamView
  participant DeviceDuoViewport
  participant DeviceStreamClient
  participant createDuoViewer
  DeviceStreamView->>DeviceDuoViewport: Render Duo phone view
  DeviceDuoViewport->>createDuoViewer: Create viewer and connect callbacks
  DeviceDuoViewport->>DeviceStreamClient: Set Duo panel frame sinks
  DeviceStreamClient->>DeviceDuoViewport: Deliver decoded panel frames
  DeviceDuoViewport->>createDuoViewer: Update screen and panel frames
  createDuoViewer->>DeviceDuoViewport: Request panel or orientation change
  DeviceDuoViewport->>DeviceStreamClient: Send Duo control command

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Merge Risk: 🔵 Low · up to ca9da

This adds iPhone Duo 3D viewing, fold and stance controls, and screen handoff. The only remaining issue is in the user guide, which names a "Restore 3D view" control. No control has that name, and iPhone Duo shows no reset button at all. Correct the guide before merging. No functional defect was found in the Duo viewer or streaming changes.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 61.11% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 18 functions across 21 files. (3 skipped:…	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
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 clearly and concisely describes the primary change: adding iPhone Duo 3D controls.
Description check	✅ Passed	The description explains what changed and why, documents verification, and includes before/after screenshots and recordings for the UI and interaction changes. It does not use the template headings or…

Full details: Docstring Coverage

Explanation

Docstring coverage is 61.11% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 18 functions across 21 files. (3 skipped: 3 unsupported.)

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[macroscopeapp]

Approvability

Verdict: Not approved

Macroscope's review found this PR not approvable — This PR introduces a substantial interactive iPhone Duo workflow across the production stream, native controls, server proxy, and WebGL viewer, rather than a small isolated change. It also changes the default Device Hub version and adds static-analysis diagnostic suppressions.

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Actionable comments posted: 1

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🤖 Prompt to fix review comments

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Inline comments:
In `@docs/user/devices.md`:
- Line 46: In the device feature section, remove the sentence naming “Restore 3D
view” because no control has that label and iPhone Duo users do not see the
reset button. Leave the existing 3D view and Duo instructions unchanged.

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ℹ️ Review info

⚙️ Run configuration

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📥 Commits

Reviewing files that changed from the base of the PR and between 72447f2 and ca9da35.

📒 Files selected for processing (25)

• apps/server/src/device/DeviceHubProxy.test.ts
• apps/server/src/device/DeviceHubProxy.ts
• apps/server/src/device/DeviceToolchain.ts
• apps/web/src/components/device/DeviceControlsRail.tsx
• apps/web/src/components/device/DeviceDuoControls.tsx
• apps/web/src/components/device/DeviceDuoGlyph.tsx
• apps/web/src/components/device/DeviceDuoViewport.tsx
• apps/web/src/components/device/DeviceStreamView.tsx
• apps/web/src/components/device/deviceModels.ts
• apps/web/src/components/device/models/iphone-duo.glb
• apps/web/src/components/device/models/sources.json
• docs/user/devices.md
• packages/client-runtime/package.json
• packages/client-runtime/src/device/duoControl.test.ts
• packages/client-runtime/src/device/duoControl.ts
• packages/client-runtime/src/device/duoScene.test.ts
• packages/client-runtime/src/device/duoScene.ts
• packages/client-runtime/src/device/duoSnap.test.ts
• packages/client-runtime/src/device/duoSnap.ts
• packages/client-runtime/src/device/duoStream.test.ts
• packages/client-runtime/src/device/duoViewer.test.ts
• packages/client-runtime/src/device/duoViewer.ts
• packages/client-runtime/src/device/model.test.ts
• packages/client-runtime/src/device/model.ts
• packages/client-runtime/src/device/stream.ts

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