#46

fix: correct \boldsymbol rendering for capital Greek and digits

feat(parser): add \mathord, \mathrel, \mathbin, \mathop, \mathopen, \mathclose, \mathpunct, \mathinner

Implement fuzz tester

Fix error recovery given unclosed environment

Fix crash on backslashed multibyte character

Support equation environment - Bump to 0.7.1

Bump codecov/codecov-action from 4 to 5

Update CI

Update libtest-mimic requirement from 0.7 to 0.8