v4.2.2

chore(release): atomic-triplet bump v4.2.1 -> v4.2.2

Maintains the cross-package version-pin invariant. ouronet-core lands
the v1.0.8-cycle SWP-pair management additions (Modify Can Change
Owner / Modify Weights / Toggle Swapping / Toggle Provisioning
builders + INFO readers + UR_* reads); ksl + stoa-core are no-op
bumps so the triplet stays aligned (test invariant in
tests/v4-1-1-cross-package-version-pin.test.ts).

• packages/{kadena-stoic-legacy,stoa-core,ouronet-core}/package.json:
  version 4.2.1 -> 4.2.2; stoa-core + ouronet-core peer-deps on ksl
  bumped 4.2.1 -> 4.2.2; ouronet-core peer-dep on stoa-core bumped
  4.2.1 -> 4.2.2.
• CHANGELOG entries added/finalized:
  • ksl + stoa-core: 4.2.2 atomic-triplet entries.
  • ouronet-core: 4.2.2 entry stamped (date 2026-05-18, wording fixed
    from 'Solo bump' to 'atomic-triplet bump').
• README Status blocks + version-history rows updated in all 3
  packages with the v4.2.2 row above v4.2.1.
• Version-string locks updated:
  • stoa-core/tests/package-version.test.ts
  • stoa-core/tests/v4-1-1-peer-dep-coverage.test.ts
  • ouronet-core/tests/package-version.test.ts
  • ouronet-core/tests/v4-1-1-peer-dep-coverage.test.ts

Test totals after bump: ksl 55 / stoa-core 653 / ouronet-core 788 =
1,496 specs pass. Cross-package-version-pin invariant green.

Shipped mid-cycle (5 of 11 SWP-pair management buttons wired in
OuronetUI v1.0.8) to validate the cascade on devwallet before the
remaining 6 land in v4.2.3.