Shared textarea form control for mounted admin pages.
Follows the same ax-field wrapper pattern as Input. Emits
aria-invalid and aria-describedby for screen-reader error
linking. Error paragraph IDs are indexed to avoid duplicate id
attributes when multiple error messages are present (D-08 fix).
Summary
Functions
Attributes
id(:string) (required)name(:string) (required)label(:string) (required)value(:string) - Defaults tonil.rows(:integer) - Defaults to4.help_text(:string) - Defaults tonil.errors(:list) - Defaults to[].- Global attributes are accepted. Supports all globals plus:
["disabled", "placeholder", "readonly", "phx-debounce", "phx-hook", "required"].