Problem: the initial approach created GitHub issues for new upstream
activity, which accumulate and require a separate triage step outside
the codebase.
Solution: rewrite the script to append new rows directly to
doc/upstream.md (open PRs and issues to their respective tables,
merged PRs with "merged — not cherry-picked" status), then open a
PR with auto-merge enabled. The workflow formats the markdown with
prettier before committing so the markdown-format check passes.
Problem: new upstream issues and PRs slip through because there's no
mechanism to surface them — manual polling of stevearc/oil.nvim is
required and easy to forget.
Solution: add a Monday 9am UTC scheduled workflow that reads the
highest stevearc/oil.nvim number from doc/upstream.md, fetches merged
PRs and new open issues/PRs above that threshold via the gh CLI, and
creates a structured digest issue in barrettruth/canola.nvim. No issue
is created when there's nothing new. Falls back to a 30-day window if
doc/upstream.md can't be parsed.
