OpenClaw adds Kimi K2.6 model support and fixes BlueBubbles iMessage issues

OpenClaw's latest update introduces support for the Kimi K2.6 model with provider-aware features, improving web and media understanding while maintaining K2.5 compatibility. BlueBubbles integration now reliably handles iMessage sends and tapbacks, and gains per-group configuration for behavioral instructions. The update also enforces session entry caps and automatic pruning to prevent gateway memory overload.