v0.1.2

- The README is rewritten in the house voice, with the same commands and facts.
- The agent skill has an installation reference, `.agents/skills/mql-compiler/references/installation.md`: per-user and system-wide installs, upgrades, uninstalling, custom installers, checks and troubleshooting.
- `CLAUDE.md` is gone; `AGENTS.md` is the agent guide.