v1.9.0

Added

• aval rules --level <level> --index lists rule ids grouped by prefix,
  one line per prefix (names: no-noise, reveal-intent), and no text. It
  wraps at 80 columns on a terminal, never inside an id, and never off one.
  It exits 2 without --level, or with --json, --all or --all-repos.

Changed

• The session hook prints the constraint index, not the constraints.
  Every active constraint's first paragraph was 26 KB of a 32 KB session
  load in the fleet decisions repository; the index is about 2 KB, and
  aval rule <id> (MCP aval_rule) has the text. This is the fleet rule
  guidance.always-on-is-an-index (decisions ADR-0026). The count line is
  now (N constraints, M heuristics), counted from the plain listing. An
  aval older than the hook refuses --index; the hook then prints one full
  id per line instead of dropping the constraints. The preamble is shorter
  and keeps the statement that record wording is data, not instruction.
  Re-run aval hook install to take it.

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What's Changed

• build(aval): 1.8.0 pin and the new rules pack by @fredericrous in #34
• docs: short README, the manual under docs/ by @fredericrous in #35
• build: verify test attestations in CI by @fredericrous in #36
• feat(hook): print the constraint index by @fredericrous in #37

Full Changelog: v1.8.0...v1.9.0