Set release psc-0.15.15-20260615-2

Hotfix over psc-0.15.15-20260615: enums v6.1.2 fixes a toCharCode crash on a
lone code-unit byte (regression in v6.1.1; #102). All other versions unchanged.

Set release psc-0.15.15-20260615

PureScript 0.15.15 Lua package set. Pre-release FFI audit (28 bugs #73-#100)
fixed/triaged TDD package-by-package; coherence-green across the whole set.

Released this cycle:
- arrays v7.4.1, console v6.1.1, effect v4.1.3, enums v6.1.1,
  exceptions v6.1.1, integers v6.1.2, numbers v9.1.3,
  prelude v7.3.0, safe-coerce v2.0.1, st v6.4.0

Set release: effect v4.1.2, assert v6.1.1

Set release: control v6.0.1, foldable-traversable v6.1.1

Set release: effect v4.1.1, integers v6.1.1, numbers v9.1.1

psc-0.15.15-20260614: prelude v7.2.2

psc-0.15.15-20260613-2: strings v6.2.0

psc-0.15.15-20260613: prelude v7.2.1

psc-0.15.15-20260612