Sync all three Qwen3.6 27B vLLM configs (tools-text, long-text,
long-vision) with club-3090 83bf73d. Adds disable-thinking flag
and introduces upstream hash tracking comments for future syncs.
Update update-vllm-3090-configs skill to use hash-based skip logic.
Co-locate update-package-hashes.sh helper script to wrap nurl and
show recent releases. Simplify SKILL.md documentation. Bump
pi-coding-agent from 0.70.0 to 0.70.2 with updated hashes.