[WC-3223]: Rename Checkbox Radio Selector widget to Option Selector

[rahmanunver]

Closes WC-3223.

Renamed

Where	From	To
Studio Pro toolbox (<name>)	Check box / radio selector	Option Selector
Marketplace listing 245825 (appName)	Checkbox Radio Selection	Option Selector
package.json description, README, editor dropzones, design-time fallback captions, read-only style description	old names	Option Selector

<description> was empty and is now filled in — it mentions checkbox and radio button so toolbox and Marketplace search still find the widget.

CHANGELOG.md gets an [Unreleased] → Changed entry. No version bump.

Unchanged (keeps existing apps working)

Widget ID, package.xml, widgetName, mpk name, npm package name, folder, generated typings, and the widget-checkbox-radio-selection* CSS classes.

Verified: all 34 property keys and 141 XML attribute tokens are identical to main, git diff typings/ is empty, the runtime bundle contains no renamed strings, and the MPK filename plus every internal path are unchanged — so an upgrade is a drop-in replacement.

Note: widgets dropped in Studio Pro after this ships get auto-names like optionSelector1; existing instances keep theirs, so current e2e locators still match.

Build 7/7, unit tests 8/8.

[github-actions]

AI Code Review

✅ Approved — no issues found

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What was reviewed

File	Change
src/CheckboxRadioSelection.xml	<name> → "Option Selector"; <description> filled in; readOnlyStyle description updated
package.json	description and marketplace.appName updated; identity fields untouched
src/CheckboxRadioSelection.editorConfig.ts	Three dropzone placeholder strings updated
src/helpers/utils.ts	emptyStringFormat updated to "Option Selector"
src/helpers/Preview/PreviewCaptionsProvider.tsx	emptyCaption updated
src/helpers/Association/utils.ts	Comment updated
src/helpers/Database/utils.ts	Comment updated
src/helpers/EnumBool/utils.ts	Comment updated
src/helpers/Static/utils.ts	Comment updated
src/ui/CheckboxRadioSelection.scss	Banner comment updated
src/ui/CheckboxRadioSelectionPreview.scss	Banner comment updated
CHANGELOG.md	[Unreleased] → Changed entry added
README.md	Title updated, compatibility note added
openspec/changes/rename-option-selector/**	New OpenSpec change artifacts

Skipped (out of scope): dist/, pnpm-lock.yaml

CI check output not retrievable in this environment; PR description reports build 7/7 and unit tests 8/8 passing.

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Positives

• Widget ID com.mendix.widget.web.checkboxradioselection.CheckboxRadioSelection, widgetName, mpkName, appNumber, and all widget-checkbox-radio-selection* CSS class names are deliberately left untouched — zero upgrade impact for existing apps.
• <description> now contains both "checkbox" and "radio button", preserving toolbox/Marketplace search discoverability under the new name.
• All four // … don't need clearable … helper comments and both SCSS banner comments were swept in the same PR — no half-renamed copy left in the source tree.
• OpenSpec change is correctly scoped inside packages/pluggableWidgets/checkbox-radio-selection-web/openspec/ (not the repo root), satisfying the monorepo constraint.
• The design.md clearly separates identity strings (frozen) from presentation strings (renamed), making the rationale auditable and the scope of the change verifiable.
• CHANGELOG entry is user-facing and correctly avoids implementation details.