[ako]

Implements mendixlabs#1511 (#1393), approved by the maintainer.

Measured first, in the running app

On an 11.15.0 fixture copy booted with run --local, a page has snippetcall snippetCall1 inside a container. The call carries Class: 'probe-x', a Style, DynamicClasses, and two design properties.

mxcli playwright check results:

• Snippet call: every selector for those settings matched 0 elements, and so did .mx-name-snippetCall1.
• Inlining: the snippet's own container sits directly under the outer container (.probe-outer > .mx-name-sc_inner matched). The snippet's widgets are inlined, with no wrapper element.
• Control: a container on the same page with the same four kinds of setting rendered all of them.

mxcli check --references and mx check (0 errors) were clean throughout, so nothing flagged the dead settings.

What this adds

• MDL-WIDGET48 (check, warning)
  • Fires on snippetcall with Class, Style, DynamicClasses or design properties in create page/snippet and in alter page insert/replace. This needs no project.
  • In the --references pass it also covers alter page … { set (…) on <snippetcall> } and alter styling … widget <snippetcall> set …. There the widget type comes from the stored page (widgetStorageTyper).
  • Setting a value to empty stays silent.
• MPR013 SnippetCallAppearance (lint, warning)
  • The same check over the catalog: class, style and dynamic classes, plus design properties from the stored page.
• Message: the snippet call renders no element because the snippet's widgets are inlined. Style a container inside the snippet, or wrap the call in a container.

Tests

• validate_snippetcall_appearance_test.go:
  • each setting on its own and several together;
  • message text;
  • controls: a bare call, and a styled container around the call;
  • alter insert;
  • alter set and alter styling on a stored snippet call;
  • stored controls stay silent.
• snippet_call_appearance_test.go: catalog fields and design properties from the document.

Revert check:

• Without the create-path hook, the create and insert tests fail.
• A stored-type check that always answers no fails the stored tests; one that always answers yes fails the container controls.
• Removing MPR013's widget-type filter makes it flag the container.

Also in this PR: lint rule table, create-page skill and widget reference, docs-site/src/language/widget-types.md, syntax snippet help, a finding file, and mdl-examples/bug-tests/1511-snippetcall-class-style.mdl. make build, make test and make lint pass.

Notes

• Severity: these are warnings, not errors, because Studio Pro itself offers these fields on a snippet call.
• Not covered:
  • an alter set on a page the same script creates (the same as the existing reference pass);
  • the bulk alter pages … where widgettype = snippetcall form.
• Rule IDs: WIDGET48 and MPR013 were the next free IDs. Parallel branches may collide; this is checked at merge.

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