ci: enable dependabot with auto-merge for low-risk updates#18
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Monitor npm and github-actions ecosystems on a weekly schedule. Group production and development npm updates separately to reduce PR churn; major updates remain ungrouped so they get individual review.
Auto-merge low-risk dependabot PRs once CI passes: all patch updates, and minor updates on direct development dependencies. Production minor and any major updates still require manual review.
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Why
Manual dependency bumps don't scale, and the recent
@types/node/typescriptmajor upgrade made it obvious we need a regular cadence.Dependabot handles the discovery, and the companion workflow merges the
boring stuff automatically so it doesn't sit on the queue.
What
.github/dependabot.yml— weekly (Mon 09:00 Asia/Taipei) checks fornpm and github-actions. Minor + patch are grouped (prod / dev / actions
each as one PR) to reduce churn; majors stay individual for review.
.github/workflows/dependabot-auto-merge.yml— once CI passes,auto-squash:
Production minors and all majors still require a human.
Follow-up on GitHub
This PR alone isn't enough — to actually take effect:
mainrequiring CI to passdependenciesandgithub-actionslabels