Add missing helptext to lua attributes

[jfperusse]

No description provided.

[Copilot]

Pull request overview

This PR adds missing .. helptext:: directives to lua:attribute documentation entries across the RST API docs, and updates the check_helptexts.py script to also validate lua:attribute directives (previously only lua:function, lua:method, and lua:staticmethod were checked).

Changes:

• Extended check_helptexts.py to include lua:attribute in the directive regex pattern and updated the docstring accordingly.
• Added .. helptext:: directives to all lua:attribute entries across 14 RST documentation files.
• Many helptexts appear to have been auto-generated or copied from unrelated contexts, resulting in numerous incorrect/misleading descriptions.

Reviewed changes

Copilot reviewed 19 out of 19 changed files in this pull request and generated 22 comments.

Show a summary per file

File	Description
scripts/check_helptexts.py	Added attribute to the directive regex so the check script validates helptext on lua:attribute directives
docs/source/api/ui.rst	Added helptexts to canvas, label, image, button, vstack, hstack attributes
docs/source/api/tween.rst	Added helptexts to tween duration, progress, target attributes
docs/source/api/style.rst	Added helptexts to shape mode, blend mode, blend function/factor, stencil, text, style, render queue, color mask, culling, and depth constants
docs/source/api/sound.rst	Added helptexts to sound preset constants
docs/source/api/shader.rst	Added helptext to shader buffer size attribute
docs/source/api/require.rst	Added helptext to require options attribute
docs/source/api/pick.rst	Added helptext to pick options attribute
docs/source/api/physics3d.rst	Added helptexts to 3D physics body, rayHit, and world attributes
docs/source/api/physics2d.rst	Added helptexts to 2D physics body, collider, contact, rayHit, joint, and shape attributes
docs/source/api/pasteboard.rst	Added helptexts to pasteboard attributes
docs/source/api/motion.rst	Added helptexts to motion reference frame and magnetic field attributes
docs/source/api/mesh.rst	Added helptexts to mesh attributes (texture, shader, vertices, etc.)
docs/source/api/math_types.rst	Added helptexts to vec2/vec3/vec4/quat component and length attributes
docs/source/api/light.rst	Added helptexts to light and shadow option attributes
docs/source/api/input.rst	Added helptexts to touch, gesture, keyboard key, and gamepad attributes
docs/source/api/image.rst	Added helptexts to image, sampler state, and slice/atlas attributes
docs/source/api/entity.rst	Added helptexts to entity attributes (transform, lifecycle, physics, UI, etc.)
docs/source/api/color.rst	Added helptexts to color component and preset constant attributes

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[jfperusse]

See comments.