What changed

• Reframes the marketing homepage around the four-panel Threadlines workflow: sidebar, agent conversation, responsive browser, and source control.
• Adds theme-matched desktop/mobile recordings and posters for the workspace overview, attention states, and browser annotation workflow.
• Replaces the social card with the approved Threadlines-branded four-panel composition.
• Adds a deterministic, privacy-safe marketing capture studio with native cursor control, window framing, OCR checks, media encoding, and asset validation.
• Adds capture-mode desktop/web plumbing so future recordings can hide OS chrome and remain reproducible.
• Cleans download platform detection and removes motion-based hover effects from the marketing UI.

Why

v0.3.0 makes the sidebar, embedded browser, and source-control panel central to the product experience. The existing site and recordings no longer represented how Threadlines is actually used.

User impact

Visitors get a more accurate, responsive view of the product in both light and dark themes. Maintainers get a repeatable recording workflow with privacy and crop checks rather than one-off screen captures.

Validation

• vp fmt
• vp lint
• vp run typecheck
• vp run '@threadlines/marketing#build'
• vp run '@threadlines/scripts#test' marketing-media
• vp run '@threadlines/scripts#test' marketing-studio
• vp run '@threadlines/web#test:browser' (353 tests)
• vp run test (full monorepo suite)
• vp run release:smoke
• Production asset-reference and privacy scans