plum

feat(lang): remove type/class entirely, enum is the only declaration form

rename folders

feat(number): add Number enum, migrate Int/Float methods, fix Float interpolation

refactor(stdlib): move libs/std to top-level plum-std, gate Int/Float/Str imports

feat(plum): make Bool an ordinary import-gated enum, no hardcoded prelude

refactor(libs/std): rename files to match their primary class name

feat(plum-core): enforce imports-first, tests-grouped-last file ordering

feat(plum): remove expect, unify on assert, Spock-style test tree output

fix(tree-sitter-plum): a ternary as a closure's inline body now parses correctly

improvements

improvements

feat(libs/std,examples,test): migrate to `fun`-prefixed function syntax

docs+test: closures complete; add example and update README