v0.8.69: Reconcile the website roadmap with retired web UI/share-link plans and Workrooms

[Hmbown]

Why

The public roadmap still lists Web UI / share-link mode as a considered direction in web/app/[locale]/roadmap/page.tsx:55, pointing at #471 and #481. Those old web/share issues are now closed as not planned (#471, #479, #481), while the newer direction is Workrooms (#3209) and docs/WORKROOM_ARCHITECTURE.md:5-11: durable, addressable agent-work threads over the Runtime API and user surfaces.

There is also a likely source-of-truth gap: the website roadmap feed expects roadmap:* labels, but gh label list --repo Hmbown/CodeWhale --search roadmap --json name currently returns no matching labels. That means the static fallback is carrying stale product intent.

Scope

• Replace the retired Web UI / share-link mode roadmap copy with current Runtime API / Workrooms framing.
• Make the website roadmap maintainable: either create/use live roadmap:* labels consistently, or remove the dead label-driven path and keep an explicit static source.
• State the current non-goals clearly: no hosted SaaS dashboard and no public share-link promise until a fresh design exists.
• Link to v0.9.0 EPIC: Chat-native CodeWhale workrooms for threaded, shareable agent work #3209 and the workroom architecture note where appropriate.
• Keep English and Chinese roadmap copy aligned.