Support Cloudflare deploy target + prefixed multi-product releases (for getsentry/toolkit)

[BYK]

Part of the sentry-cli + sentry-mcp -> getsentry/toolkit monorepo merge.
Full plan: https://gist.github.com/BYK/8c0ce6cec64608f41fe5654b7827228e

Status

This Cloudflare-target request is superseded for CLI docs by #864: CLI docs are release-gated on Vercel and are live there.

Cloudflare remains the deployment platform for the MCP Worker after getsentry/sentry-mcp is renamed to getsentry/toolkit; any Worker-specific Craft work remains relevant to that deployment path.

Remaining monorepo release work

Prefixed releases (cli@x.y.z / mcp@x.y.z) are tracked in #844 and getsentry/cli#1243.

Cross-links

• Master: Merge sentry-cli + sentry-mcp into getsentry/toolkit monorepo (master) cli#1248
• MCP rename and live Worker deploy path: Validate merged monorepo in sentry-mcp, then rename to getsentry/toolkit toolkit#1156
• CLI docs Vercel target: Support Vercel deploy target for CLI docs website (getsentry/toolkit) #864

[BYK]

Master tracking issue: getsentry/cli#1248 (getsentry/cli#1248)