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

examples/depreciation-reversal-before-its-run-is-refused.toml

@@ -1,8 +1,11 @@
 id = "depreciation-reversal-before-its-run-is-refused"
 title = "A depreciation run can't be reversed on a day before its own"
 rule = "A correction comes after what it corrects: a depreciation run, or a reversal of one, can't be reversed on a day before its own. A run of March reversed on Jan 31 would leave January and February with negative depreciation."
-status = "AUTHORITY"
-sources = ["Pacioli 1494, ch. 31"]
+status = "CONVENTION"
+sources = [
+  "Pacioli 1494, ch. 31",
+  "wanderbooks docs/spec/rules.md B-15 rule 6, B-9: a correction comes after what it corrects (CONVENTION)",
+]
 tags = ["depreciation", "reversal", "refusal", "p3-defect-22"]
 
 [setup]