- Deep diagnosis of RTX 5070 Ti GSP firmware crash (NVIDIA bug #5953411) - Power management workarounds ineffective, confirmed known Blackwell issue - Created MAC_BUILD_TASK.md handoff for M4 to do transcription - Fixed critical CLAUDE.md case sensitivity bug (lowercase never loaded on Linux) - Created Linux workstation machine spec Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>