* chore: add workflow which checks if SPDX ID exists
* chore: add missing SPDX ID in some files
* chore: change trigger condition
* chore: trigger on push
* lint
* chore: make pure renote detection an function
* fix: we can renote pure renote
* docs(changelog): リノートをリノートできるのを修正
* fix: remaining debug log
* chore: move isPureRenote to misc
* chore: make isPureRenote type guard
* chore: use isPureRenote in other places
* fix CHANGELOG
* style: fix lint
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Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>