feat(nudge): ReContext-grounded cue reactivation + analyst refinements

Analyse claude-adam through ReContext (arXiv:2607.02509): close the
access!=utilization gap with query-conditioned nudge replay + analyst tweaks.

- nudge: optional cue.cwd gates SessionStart replay (adam-nudge.mjs) and
  new mid-session reactivation on UserPromptSubmit (adam-observe.mjs,
  cwd-gated, once/session, ADAM_NO_MIDSESSION_NUDGE opt-out).
- new adam-apply-nudge.mjs builds message + cue deterministically from
  proposal frontmatter (wired into SKILL.md, install.sh, pending-check).
- adam-batch: optional --max-batches/--top-fraction output cap (default off),
  reports capped.
- analyst: utility-lift rubric penalty + skill_utility_path fed to both
  stages; adaptive re-diagnose for unclear/top-severity clusters;
  cross-type associative pass (agents/adam.md, SKILL.md).
- tests: 140 -> 144 (cue gate, batch cap, apply-nudge, mid-session).

README.md

@@ -13,7 +13,7 @@ Watches the friction in your coding sessions, clusters the signals via an LLM an
 
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