meshpad:0.1.1

[13Stokes31]

Adds meshpad 0.1.1 — a patch release that validates the numeric arguments of
grid-paper. No change to what it draws.

Until now only kind and lines were checked. step: 0 failed with Typst's
"cannot divide by zero" pointing inside the package, major-every: 0 with
"divisor must not be zero", and a negative step, a negative or fractional
major-every, and a zero or negative size all compiled in silence and drew
nonsense. Each of those now raises a meshpad: message that says what was
expected and what it got, before anything is drawn.

Two details worth noting, since size and step accept both plain numbers and
Typst lengths. Positivity is tested against the zero of the value's own type, as
a length and an integer cannot be compared. And the type check is "all lengths
or all plain numbers" rather than "all the same type", so the documented
size: (6, 4) with step: 0.5 — an int/float mix — keeps working; what is
rejected is mixing a length with a plain number, which used to fail deep inside
CeTZ with "cannot add length and float".

The must-fail cases are now an actual battery (tests/errors.sh, 10 cases each
asserting its own message); they previously sat commented out and never ran.

• Repository: https://github.com/13Stokes31/meshpad
• License: MIT
• Depends on CeTZ 0.5.2. Typst >= 0.14.0.

0.1.0 is untouched; this adds packages/preview/meshpad/0.1.1/.

I have read the submission guidelines; the package compiles, has a README with
examples, a LICENSE, and a valid typst.toml.

[elegaanz]

Thank you.