v0.6.6

Added

• Info overlays on the Overview page. The stat tiles, section headers,
  ranked-bar labels (attribution classes, failure classes) and table badges
  use terms — AGENTIC/PROCESS/HUMAN/UNATTRIBUTABLE, SCOPE-CREEP, "theatre",
  "harness-fixable" — that were previously only documented in Rust doc
  comments. A small ? icon (or, where there's no room for one, a
  dotted-underline hover target) now surfaces each term's definition on
  hover or click/tab-focus, from a single glossary in app.js. No change to
  data flow or wire format.