Changelog #010 New models, new tier, smarter agents.

- Sonnet 4.6 + Kimi 2.5 added to the playground. Two new frontier models ready to run your agents. - Max tier $200/mo plan launched. Higher limits for heavier workloads. - 8GB instances in the warm pool. Bigger VMs now boot instantly. - Custom profile pictures for workspaces. Know who's a human and who's a robot. - Improved system prompts & agent context. Agents are smarter out of the box in our playground. - Patched React Server Components CVE + security improvements across the board.