sx v2.1.2

Changelog

• daae058 SK-623: Address review feedback
• 5c526b1 SK-623: Conditional My skills sidebar row
• 747ae14 SK-623: Fix keychain auto-lock hang in signing
• 136b36f SK-623: Harden notarization vs network drops
• 6990f1d SK-623: Key sleuth user installs on entityRef
• 609b1c7 SK-623: Make installation adds additive everywhere
• 0e8a5fa SK-623: Manage every install scope in the app
• a47f6e4 SK-623: Narrowing warnings and simpler picker
• b393f85 SK-623: Order install kinds org, team, bot, repo, me
• e535fe9 SK-623: Org installs always replace on skills.new
• 9741164 SK-623: Scoped extension installs and counts
• 92f53ca SK-623: Surface extension listing failures
• c825510 SK-623: Treat unparsed notary status as transient
• dea80d9 SK-623: Unify picker control; review fixes