docs(README): include benchmarking instructions

refactor(parser): introduce `expectExpression` for stricter parsing

refactor(virtualmachine): relax boolean operand checks and simplify constructor

refactor(bytecodeemitter): move size encoding to section functions and rename `instructionName` to `opname`

refactor(codegenerator): simplify AST traversal and improve register management

refactor(parser): simplify token consumption and improve comments

feat(tokenizer): add `EOF` token at end of input

style: fix indentation

refactor(virtualmachine): move `FIELDS_PER_FLUSH` constant outside of `CONFIG`

refactor(virtualmachine): simplify closure handling and reorganize documentation

fix(codegenerator): isolate numeric for-loop variable from internal state

test: refactor test suite and apply formatting

chore(benchmarks): replace legacy perf test with new benchmark files

chore(stylua): remove non-existent trailing whitespace configuration

docs: improve header comments for better clarity and usage instructions