Cleanup from the /simplify pass on PR #715.
- App.tsx: subscribe to the runtime's `stage-size` message (which
carries authoritative width/height post-applyCompositionSizing)
instead of re-parsing data-width/data-height from the iframe DOM.
Drops the cross-origin try/catch, querySelector, and parseInt logic,
and fires once per comp load instead of on every state/timeline tick.
- App.tsx: import CompositionDimensions from RenderQueue instead of
inlining the shape.
- RenderQueue.tsx: replace scaleLabel() with a SCALE_LABEL record,
inline the one-call formatDims helper, and trim the type comment to
the WHY.
Orientation is a property of the composition, not a user choice — the
backend's portrait/landscape presets are tied to the comp's authored
aspect ratio. Letting users pick "1080p portrait" for a landscape
composition just produces a wrong-aspect render.
The dropdown now exposes three scale choices (Auto / 1080p / 4K) and
maps to the correct portrait/landscape preset based on the active
composition's data-width / data-height. Native <select title> tooltips
are unreliable across browsers, so the resolved dimensions render
inline in each option label (e.g. "1080p · 1920×1080") — always
visible, no hover needed.
App.tsx tracks the active comp's dimensions by listening for the
existing hf-preview state/timeline postMessages (same source the
caption-detection logic uses) and passes them to RenderQueue. The
useRenderQueue / backend contract is unchanged: RenderQueue still emits
"landscape" | "portrait" | "landscape-4k" | "portrait-4k" | "auto".
## Summary
Studio manual geometry edits now persist as a project-local manifest instead of being baked into composition source on each gesture.
The manifest lives at:
```text
.hyperframes/studio-manual-edits.json
```
It is the source of truth for manual drag, resize, rotation, inspector geometry edits, group moves, and selected-layer reset.
## Architecture
- **Manifest-backed edits**: each edit stores a kind (`path-offset`, `box-size`, `rotation`), a source-scoped target, and the edit values.
- **Source-scoped resolution**: targets include `sourceFile`, `id`, `selector`, and `selectorIndex`, so duplicate selectors in nested compositions resolve against the owning source file.
- **Additive CSS layer**: move uses CSS `translate`, resize writes stable dimensions/flex sizing, and rotation uses CSS `rotate` over the authored base.
- **Shared replay runtime**: Studio preview, thumbnails, frame capture, producer renders, and CLI Studio renders/thumbnails all use the same core manual-edit render script.
- **Animation-safe replay**: Studio reapplies the manual layer after load, refresh, timeline seeks, player operations, playback frames, thumbnail seeks, and render seeks instead of rewriting GSAP timelines.
- **History and handoff**: the manifest is a normal project file, so undo/redo and agent edits can preserve, modify, or remove manual visual edits explicitly.
## User Impact
Users can move, resize, rotate, group-move, and reset supported layers from the canvas or inspector, then refresh, capture thumbnails/screenshots, play animated compositions, and render videos without manual edits drifting away from the edited state.
## Main Files
- `packages/studio/src/components/editor/manualEdits.ts`
- `packages/studio/src/components/editor/DomEditOverlay.tsx`
- `packages/studio/src/components/editor/PropertyPanel.tsx`
- `packages/studio/src/App.tsx`
- `packages/core/src/studio-api/helpers/manualEditsRenderScript.ts`
- `packages/studio/vite.config.ts`
- `packages/cli/src/server/studioServer.ts`
- `packages/core/src/compiler/htmlBundler.ts`
- `packages/producer/src/services/htmlCompiler.ts`
- `packages/core/src/studio-api/routes/thumbnail.ts`
- `packages/producer/src/services/fileServer.ts`
- `packages/producer/src/services/renderOrchestrator.ts`
## Test Plan
```bash
volta run --node 22.20.0 bun run build
volta run --node 22.20.0 bun run --filter @hyperframes/core test -- src/studio-api/helpers/manualEditsRenderScript.test.ts
volta run --node 22.20.0 bun run --filter @hyperframes/core typecheck
volta run --node 22.20.0 bun run --filter @hyperframes/studio typecheck
volta run --node 22.20.0 bun run --filter @hyperframes/cli typecheck
volta run --node 22.20.0 bunx oxlint <changed files>
volta run --node 22.20.0 bunx oxfmt --check <changed files>
git diff --check
```
Raise default encoding quality to visually lossless at 1080p (CRF 18)
and expose fine-grained encoding controls for power users.
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
## Summary
- Adds a hover tooltip (?) next to the format dropdown in the render queue export bar
- Shows the selected format's details (codec, use case) plus a comparison with the other two formats
- Helps users pick between MP4 (general), MOV/ProRes 4444 (transparent video for editors), and WebM/VP9 (transparent for web)
## Test plan
- [x] Open studio, go to the render queue panel
- [x] Hover over the (?) icon next to the format dropdown — tooltip appears above
- [x] Switch format in the dropdown — tooltip content updates to show the selected format first
- [x] Move pointer away — tooltip dismisses
- [x] Verify tooltip doesn't clip or overflow the panel
<img width="420" height="263" alt="image" src="https://github.com/user-attachments/assets/f4bd8bf7-65ed-45ab-ac53-577b4985fa34" />
## Summary
- Adds `--format mov` to the render CLI for ProRes 4444 transparent video output
- ProRes 4444 with alpha is the industry standard for transparent video overlays, supported by CapCut, Final Cut, Premiere, DaVinci, and After Effects
- WebM VP9 alpha technically works but is ignored by all major video editors — only browsers decode it
- Adds MOV to the studio export dropdown alongside MP4 and WebM
## Transparency format comparison
| Format | Codec | Alpha | Video editors | Browsers | File size |
| --- | --- | --- | --- | --- | --- |
| **MOV** | ProRes 4444 | Yes | CapCut, Final Cut, Premiere, DaVinci, After Effects | No (won't play in browser) | Large (~5-40 MB) |
| **WebM** | VP9 | Yes | None (shows black) | Chrome, Firefox | Small (~200 KB) |
| **MP4** | H.264 | No | All | All | Small |
> **Note:** ProRes MOV files do not play in Chromium browsers — they are an intermediate/editing format, not a delivery format. Use [rotato.app/tools/transparent-video](https://rotato.app/tools/transparent-video) to verify transparency works correctly.
## Changes
- **CLI**: Add `mov` to `--format` validation, examples, and output path logic
- **Engine**: `getEncoderPreset()` returns ProRes 4444 (`yuva444p10le`) for `mov` format; handle `.mov` in `applyFaststart` and `muxVideoWithAudio`; add `pix_fmt` to streaming encoder ProRes path
- **Producer**: Treat `mov` like `webm` for alpha capture (PNG frames, screenshot mode, `forceScreenshot`)
- **Studio**: Add MOV option to export format dropdown and render queue hook
- **Core**: Add `mov` to studio API types, render route, and mime helpers
- **Tests**: Add encoder preset tests for mov format (42 total, all passing)
## Usage
```bash
hyperframes render --format mov --output overlay.mov
```
## Test plan
- [x] `pnpm build` passes
- [x] `pnpm --filter @hyperframes/engine test` — 42 tests pass (2 new for MOV)
- [x] `oxlint` and `oxfmt` clean on all 12 changed files
- [x] End-to-end local render produces ProRes 4444 (`yuva444p12le`) with working alpha
- [x] Docker render with `--format mov` — ProRes 4444 confirmed via ffprobe
- [x] Studio dropdown shows MOV option in built JS
- [x] Transparency verified with [rotato.app/tools/transparent-video](https://rotato.app/tools/transparent-video)
## Summary
- Add render queue panel with progress tracking, download, and delete actions
- Restructure App layout: home page with project picker, session-based routing
- Add ExpandOnHover component for preview-on-hover interactions (uses motion/react)
- CompositionsTab now supports hover preview with expanded iframe view
- Vite config: guard setInterval cleanup to dev-only (fixes CI build timeout)
- Add favicon and update studio package deps
## Test plan
- [x] Render queue shows progress, completes, and allows download
- [x] Home page lists projects and navigates to session view
- [x] ExpandOnHover shows expanded preview on mouse hover with spring animation
- [x] `vite build` exits cleanly (no hanging process from setInterval)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
James