[gdevenyi]

Instrument authors can now ask for a date picker with a time input on a date field, and can mark options of a set field that cannot be selected together with any other option (for example "None of the above"). This comes from @douglasneuroinformatics/libui 6.19.2 → 6.20.0 and @douglasneuroinformatics/libui-form-types 1.4.0 → 1.6.0.

Changes

• A date field accepts an optional variant of 'date' (the default) or 'datetime'. With 'datetime', the form shows a time input beside the date picker and still stores one Date.
• A set field accepts an optional exclusiveOptions list. When the respondent selects one of these options, the form disables all other options until it is deselected.
• Instrument validation keeps both fields and rejects a variant that is not 'date' or 'datetime' and an exclusiveOptions that is not a list of strings.
• All workspaces resolve one version of libui-form-types (1.6.0). Before, runtime-core used 1.4.0 and libui used 1.5.0.

Decisions

• The form instrument schema declares the two new fields in this PR, not in a later one. The schema removes fields it does not declare, so a version bump alone would let an author type variant: 'datetime' and then lose it wherever the instrument is validated (the playground, and apps/web in development).
• exclusiveOptions accepts any list of strings. The schema does not check each entry against the keys of options; the type in libui-form-types does that for authors at compile time. The alternative, a cross-field check, would put a .check on a schema that other schemas derive from.

Risks

• An instrument whose date field already has an unexpected variant, or whose set field has an exclusiveOptions that is not a list, parsed before (the field was removed) and is now rejected. The types did not permit these fields before, so this is accepted.
• exclusiveOptions is enforced only in the UI, as the upstream documentation states. An instrument that requires the rule must also put it in its validation schema.

Filed: #1905, #1906, #1907

Adversarial review

Reviewed at commit 2a7f6ce. pnpm check: green.

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CLEAN

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