docs(CLAUDE.md): Wave-3 rung state — Axis 8 closed + examples 5/9/10 landed

[hyperpolymath]

Updates the Current rung state (2026-05-20) block to record Wave 3
of today's swarm and refresh the next-Claude plan.

What this captures

• 5 Wave-3 PRs (#80 EchoSearch, #81 provenance, #82 absint,
  #83 parser, #85 EchoCost) and 2 parallel-session merges
  (#84 Pillar E Evaluation, #86 F1 gc-coassoc).
• Axis 8 is now 4-of-4 (decidability + graded access + cost + search).
• Next-Claude plan refreshed: ordinal-track unbudgeted WF is the named
  next bottleneck; EchoApprox examples 6/8 still open; EchoSearch
  sequential/product composition deferred.

Two minor lessons memorialised

• Per-lane Smoke open import ... using ( ... ) blocks should be
  separate (with header comments), not shared paren-blocks — cuts
  swarm merge-conflict noise.
• During swarm-merge sequences, re-fetch the branch before any
  force-push: parallel claude sessions may be concurrently rebasing
  the same PR (observed on #82).

Invariants

• Doc-only change; no Agda touched.
• --safe --without-K invariant unchanged.

Co-Authored-By: Claude Opus 4.7 (1M context) noreply@anthropic.com

[github-actions]

🔍 Hypatia Security Scan

Findings: 10 issues detected

Severity	Count
🔴 Critical	0
🟠 High	5
🟡 Medium	5

View findings

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