Artifact Persistence & Longer Agent Runs

Generated images, HTML previews, and other artifacts now reliably persist across page refreshes. Agents can also run longer on complex multi-step tasks without stopping prematurely.

• ›Artifacts survive page refresh -- previews and generated files are now linked directly to messages instead of matched by timing
• ›Wider recovery window -- existing artifacts are matched more reliably even for long-running generation tasks
• ›Longer agent runs -- complex multi-tool tasks (like generating multiple images) can now auto-continue up to 8 times instead of 5