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/assets-a-reversed-run-is-not-posted.toml

@@ -6,7 +6,7 @@ rule = "The accumulated depreciation the books carry for an asset counts each ru
 status = "AUTHORITY"
 sources = [
   "wanderbooks docs/spec/rules.md B-8, B-9 (a correction is an opposite entry; reversing the reversal reinstates the original)",
-  "wanderbooks docs/spec/rules.md B-24",
+  "wanderbooks docs/spec/rules.md B-15 rules 6 and 8",
 ]
 tags = ["fixed-assets", "depreciation", "reversal"]