Add the i8* terminal aliases (make install-alias) and ai8* agent
conversation shortcuts (docs/.../agents/alias.md), move skill
distribution to the external INFINITO_SKILLS_REPOSITORY (make
install-skills), and add make cheat, make alias and make onboard. Introduce
custom.env operator overrides (win over defaults and handlers) and pin
INFINITO_ALIAS_MD / INFINITO_ALIAS_REPOSITORY / INFINITO_SKILLS_REPOSITORY
in default.env. Drop the in-repo skills-lock.json and its update-skills CI
job. AGENTS.md instructs agents to suggest the matching cli/prompt alias
when an operator writes something an alias covers. Lints enforce alias
sorting, i8/ai8 prefixes, no consonant clusters, full make-target
coverage, and terminal/agent shortcut non-overlap.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>