https://gitlab.synchro.net/main/sbbs/-/commit/c97924540b81e05079330cb5
Modified Files:
src/syncterm/Wren.adoc src/syncterm/scripts/ui_input.wren ui_input_test.wren ui_popup_test.wren
Log Message:
ui: show the end of long prompt values

Prompt initializes a TextInput value before assigning its bounds. The
cursor was placed at the end, but the horizontal viewport remained at
zero because no field width existed yet. This displayed the value prefix
while clamping the visible cursor into the field, then jumped on the
first cursor movement.

Recalculate the TextInput viewport whenever its width is assigned or
changed. Start from the unscrolled position before ensuring visibility
so long values consistently show their trailing characters and a cell
for the insertion cursor.

Cover both direct TextInput layout and the long initial-value Prompt
path, and document the viewport contract.

Co-Authored-By: OpenAI Codex <noreply@openai.com>

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