- forge-session recognizes `gh pr view`, `gh pr edit`, and `gh pr checkout`
as binding evidence with the new `referenced` origin. It binds the URL
given as the subcommand's first argument and the URL the output prints
for that change request: gh's `url:` field, a URL alone on a line before
a description, or a JSON `url` member. Links in a description do not
bind. Pending calls carry this evidence, and the projection's state
version moves to 2, so existing Sessions fold their logs again.
- forge-session adds `discoverBranch(session, remote, branch)`, the lookup
that follows a push, for a branch that a caller reports.
- The panel reports the checkout's upstream branch when a provider
recognizes its remote, once per remote and branch until a refresh, so a
Session on a branch with an open change request shows it without a push.
- The empty panel names every way a change request becomes linked.
Yichen Jiang
e99272d04e