P3 review: the surface, docs and proofs

Split kernel::entry_flows into entry_movements and flows_of so the
reversal-mirror proof fits CI; prove runs the fast harnesses, prove-slow
the 8 slow ones (own job in scheduled CI), prove-all both. Laws in
verification.md renumbered 1-31 with a table of all 55 harnesses.

MCP docs checked against the 115 tools (about 60 fixes) with a test that
every tool is documented; rules.md cross-references fixed; bookspec
statuses and loader tightened; viewer notes wrap and accounts sort by
code; STATUS.md says P3 is built, cutover pending.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01T3gXMVt7XJPi6ens1or9Dj

bookspec/examples/p3-party-reversed-card-payment.toml

@@ -14,9 +14,10 @@ their own funds (Dr card / Cr due to members), tagged with the card's
 issuer, is paid to the issuer; its reversal takes that back, so the pair
 nets to zero; reversing the reversal pays it again.
 """
-status = "AUTHORITY"
+status = "CHOICE"
 sources = [
   "Pacioli, Summa (1494), Geijsbeek tr.: a mistake is corrected by the opposite entry (wanderbooks docs/spec/sources/pacioli-1494.md, rules.md B-9)",
+  "DECISION D-42 (owner, 2026-10-20): what a member pays for the company through the members' financing is money: cash borrowed and spent (wanderbooks plan/served.md; rules.md B-14 rule 11, B-35 items 5 and 8)",
 ]
 tags = ["parties", "reversals", "liabilities"]