ai_assistant_ui 1.0.0-rc2

AI Assistant UI 1.0.0-rc2 improves component scaffolding
and introduces reusable example questions managed directly on each assistant.

Improvements

• New Try questions page, accessible from the assistant and chatbot block configuration.
• Save shared example questions or try unsaved edits, using separate or shared conversations.
• Improved access checks, input validation and error reporting for question runs.
• Interrupted runs retain completed answers and clearly report incomplete results.
• Component scaffolding now copies nested assets and correctly reports filesystem failures.
• Expanded automated coverage for migration, permissions, administration and streamed results.

Updating

drush updb
drush cr

Update 10002 moves saved questions from Block layout placements
to their assistants, merging lists and removing duplicates. Export the
updated configuration afterwards.

• Existing question lists in Layout Builder require manual transfer to the assistant.
• Trying questions now requires administer ai_assistant instead of administer blocks.