v4.0.0

Major Changes

• 96f0a82: Widen @just-func/types from ^0.5.1 to ^0.6.0.

  A caret range on a 0.x version cannot cross a minor boundary, so ^0.5.1 was
  permanently stuck on @just-func/types@0.5.x, which depends on type-plus@^5.0.0.
  That meant every consumer of @unional/events-plus resolved a transitive
  type-plus@5.6.0 in their tree, alongside whatever newer type-plus version their
  other first-party dependencies pulled in.

  @just-func/types@0.6.0 depends on type-plus@8.0.0-beta.10. Widening the range
  lets consumers actually reach it, removing the stale transitive type-plus@5.6.0
  from their dependency tree.

  This is a major bump, not minor, because @just-func/types' JustDuo, JustEmpty,
  JustMeta and JustUno types are imported directly into ts/justEvent.ts and leak
  into the emitted .d.ts files (esm/justEvent.d.ts, cjs/justEvent.d.ts, and the
  package's public index.d.ts re-exports that build on them). Consumers pick up
  @just-func/types@0.6.0's types — built against type-plus@8.0.0-beta.10 — through
  those public type surfaces, and type-plus@8 also introduces a new
  typescript >= 5.6.0 peer dependency that consumers now inherit as well.