Linear Extension Routes PRs Into Reviews

This is a small feature with outsized workflow value: it removes a context switch while acknowledging that GitHub and Graphite remain core surfaces for many engineering teams.

• –Direct routing makes Linear Reviews easier to adopt during existing PR workflows
• –Linear’s review experience supports diffs, comments, approvals, and GitHub synchronization
• –Graphite users gain another bridge between stacked PR workflows and Linear’s issue context
• –The extension does not unify every review state, so teams still need clear source-of-truth conventions
• –Browser permissions covering GitHub and Linear domains warrant normal security review before deployment