Adds `.claude/rules/asset-pipeline.md` describing the full pipeline — generators, meta stamp, pre-push hook, how to make DB/schema changes, and why direct systems.db edits are forbidden. CLAUDE.md and DEVOPS.md point at the rules file; sprint-start template now reminds teammates to read it before touching DB sources. CLAUDE.md also gains the missing `decision show` row in the CLI tool table (companion to #723's `decision show` subcommand). Refs: #859 #723 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>