v0.21.2

Changelog

• 32db3a0: docs(research): measure Git history growth for fact storage (#534) (@juev)
• c93d9db: docs: record exploratory research on memory capture and recall (#535) (@juev)
• 457f902: fix(hermes): drop external dependency check from the manifest (@juev)
• 4ab40c7: fix(search): read a shelf named beside all (@juev)
• a5e13af: fix(cli): take -- after the ID of correct as a separator (@juev)
• 6d76a01: fix(store): keep one copy of a version both merge tails hold (@juev)
• bd39ec5: chore(release): prepare memcue 0.21.2 (@juev)