fix(admin): use control-generic wording for selectable prop docs [2026-04]

[sordaz00]

Backport of #4667 to 2026-04.

What

Four shared declarations describe themselves as a checkbox, and all of them are inherited by components that aren't checkboxes:

• BaseSelectableProps (disabled, value) → BaseOptionProps → Choice, Option
• BaseCheckableProps (label, name) → Switch
• PreactCheckboxProps / PreactCheckboxElement (value) → Switch (SwitchProps extends PreactCheckboxProps, class Switch extends PreactCheckboxElement)

Wording

"checkbox" → "control". State verbs follow each interface's own family vocabulary: BaseSelectableProps uses selected (matching its name and the Option/Choice wording), the checkable declarations keep checked. "control" matches ui-api-design, the upstream source of truth.

Change

Same 8 sentence-level replacements as #4667, applied to this branch's components.d.ts and generated docs. Each is asserted to appear an exact expected number of times before writing, so version drift fails loudly rather than silently no-op'ing. Generated JSON was patched textually rather than regenerated; all files re-parse as valid JSON and the diff is symmetric (3 files changed, 45 insertions(+), 45 deletions(-)).

Refs shop/issues-learn#2959

🤖 Generated with Claude Code

[github-actions]

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