chore: update manifest paths to .machine_readable/6a2/

Author: hyperpolymath

0-AI-MANIFEST.a2ml

@@ -2,4 +2,4 @@
 @manifest { version: "1.0.0", repo: "hyperpolymath/asdf-tool-plugins", updated: "2026-02-08" }
 @canonical-locations { scm-files: ".machine_readable/", ci-cd: ".github/workflows/" }
 @critical-invariants { rule: "SCM files in .machine_readable/ ONLY" }
-@lifecycle { on-enter: "Read manifest then SCM files", on-exit: "Update STATE.scm" }
+@lifecycle { on-enter: "Read manifest then SCM files", on-exit: "Update .machine_readable/6a2/STATE.a2ml" }