showTypingIndicator hid the standalone thinking dots for any non-empty
trailing text part, so during the pause after the model finished an
intermediate narration and before its next step (e.g. a tool call) the
UI looked frozen. Suppress the dots only while the text part is still
streaming: a finalized ("done") trailing text part on an in-flight turn
now shows the dots again, matching the function's documented intent.
- message-list: guard the text branch with state !== "done" (AI SDK v6
TextUIPart.state); stateless parts keep their previous behavior
- show-typing-indicator.test: add done -> shown and streaming -> hidden cases
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
5aa199660d