Kherep 0.1.2

Added

• A search verb for the Confluence brokers. It runs a read-only semantic
  search filtered to the configured space and reports a hit, no match or an
  unavailable search as distinct exit codes (0, 1, 2).
• An evidence-first gate for Claude. A UserPromptSubmit hook asks for
  research on relevant prompts, naming the knowledge space and, inside a Git
  repository, the code graph. A Stop hook sends a substantial turn back once
  when it shows neither a lookup nor the visible classification
  [research: none - <reason>]. Trivial turns are not gated, a continuation
  is never blocked twice, and an unreadable transcript fails open. Skills
  listed in the optional operator file <claude-home>/kherep/research-sources.json
  count as lookups.

Changed

• Codex observations no longer surface as a visible Stop continuation after a
  reinstall. Both hosts project an acceptance-only Stop group; the
  UserPromptSubmit Maestro context hook reminds the Maestro quietly to
  dispatch codex-obs once per main turn. Earlier managed Stop groups with an
  observation step are upgraded in place.