Four AI agent chat improvements

A round of quality-of-life changes to the AI agent chat panel:

Paste images directly. Pasting an image (Cmd+V / Ctrl+V) into the chat now attaches it, just like dragging a file or using the upload button. Grab a screenshot or reference image from your clipboard and hand it straight to the agent.
Type a tile name to add it. Type "Tabs", "Carousel", "Hotspot", or any other tile name into the chat and a button appears to add it in one click — no navigating the tile menu or waiting on a full agent edit.
Cleaner activity log. Finished steps now collapse into short one-line summaries as the agent works. The detail is still there — click any step to expand it — but the log stays compact so the current action stays in view.
Live page tracking. During multi-step edits, the activity feed names the specific page being edited and updates more reliably, so you can follow which part of the course is changing.

A round of quality-of-life changes to the AI agent chat panel:

Paste images directly. Pasting an image (Cmd+V / Ctrl+V) into the chat now attaches it, just like dragging a file or using the upload button. Grab a screenshot or reference image from your clipboard and hand it straight to the agent.
Type a tile name to add it. Type "Tabs", "Carousel", "Hotspot", or any other tile name into the chat and a button appears to add it in one click — no navigating the tile menu or waiting on a full agent edit.
Cleaner activity log. Finished steps now collapse into short one-line summaries as the agent works. The detail is still there — click any step to expand it — but the log stays compact so the current action stays in view.
Live page tracking. During multi-step edits, the activity feed names the specific page being edited and updates more reliably, so you can follow which part of the course is changing.