feat: publish OpenScene downloads for macOS, Windows, and Linux

[sjungwon03]

Closes #166

What changed

v0.3.0 is the first OpenScene release to ship packaged installers, so the site now offers them instead of only run-from-source.

• Home page — a #download section with per-platform cards, a Download for desktop hero action, and nav and footer entries. SoftwareApplication schema gains softwareVersion and downloadUrl.
• Documentation — both locales get a Download a packaged build section with a table of every asset, ahead of the existing clone-and-run instructions.
• One source of truth — apps/openscene/lib/releases.ts holds a single releaseVersion; every link and label derives from it.

Platform	Build	Asset
macOS	Apple Silicon	OpenScene-0.3.0-arm64.dmg
macOS	Intel	OpenScene-0.3.0.dmg
Windows	Installer	OpenScene.Setup.0.3.0.exe
Linux	AppImage	openscene-0.3.0-x86_64.AppImage
Linux	deb	openscene-0.3.0-amd64.deb

Why the link strategy looks like this

Asset filenames carry the version, so GitHub's releases/latest/download/<asset> cannot resolve them — every link is pinned to the tag. test/releases.test.ts checks each filename against the tag it points at, and test/home.test.tsx asserts the rendered href for every asset, so a version bump that misses one fails in CI rather than 404ing for a visitor. Bumping a release is one edit to releaseVersion plus the filenames beside it.

Claims the release invalidated

Offering a download beside "there is no packaged installer" would contradict itself, so these are corrected in the same change:

• the hero caption no installer yet and the Is there an installer? FAQ answer
• the documentation index lede, the overview caution note, and the install-page caution note, in both locales
• auto-update in the "Not yet" column of the boundaries table
• the Updates note, which now describes the prompt the application actually shows — it asks before updating — rather than claiming silent background updates, which nothing here verifies

Signing status is stated rather than omitted, following the release notes: macOS builds are Developer ID signed and notarized; Windows and Linux builds are unsigned, and Windows SmartScreen warns on first run.

Also included

Leftover openvideo identifiers that landed after the rename: the product-surface--openvideo class in three apps, the openvideo-workspace-surface test id, the aria-label in apps/theorvane/public/products/openscene.svg, and two planning documents.

Verification

npm run lint, npm run typecheck, npm test (46 OpenScene tests, 175 total), npm run build, npm audit --omit=dev --audit-level=high (0 vulnerabilities), and git diff --check all pass. Checked against a local dev server: all seven download links resolve to the v0.3.0 tag, the grid is three columns at 1280px and one column on narrow viewports, and both /docs/install and /docs/ko/install render the asset table. No console errors.

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Project	Deployment	Actions	Updated (UTC)
openscene	Ready	Preview	Jul 31, 2026 7:30am
type-chain	Ready	Preview	Jul 31, 2026 7:30am

[sjungwon03-ai]

The PR introduces packaged download links and documentation updates for OpenScene v0.3.0 on macOS, Windows, and Linux. The implementation centralizes release metadata in releases.ts, adds comprehensive tests, updates both language docs, and corrects outdated claims. All verification steps (lint, typecheck, tests, build, audit) pass with no code-quality blockers identified.