fix(aura-cli, ledger): review fixes — override stamps the base hash (#343 revised), prose corrections

Harvest sweep, whole-diff review fix block.

The review refuted the #343 ratification's factual premise: the
campaign leg does NOT mint a reopened member's hash — runner.rs passes
the stored strategy_id as topo even for reopened members (reference
semantics). Decision revised on the issue (fix, not ratify): exec's
override run now stamps the LOADED base document's content id
(computed before reopen_all; RED-first — the inverted pin failed on
the old reopened-hash behaviour), keeping topology_hash
store-resolvable and identical in meaning across both legs; the
variation lives in manifest.params. C24/C12/C18 rewritten to the
corrected reading.

Also per review: C24's retired build-free-introspection sentence
updated (old wording archived in the history sidecar, #339 item 4);
C14's partition key precisely scoped to the routing seam, naming the
legs' differing content-validation exits honestly; measure.rs's false
unreachability comment corrected; --taps added to the guide's
introspect cheat-sheet and pinned on the content-id path; the
zero-trade-cell note routed through the diag macro; doc-comment,
issue-ref, and gate-name corrections; the Fixed-regime NaN branch
pinned.

refs #339
refs #342
refs #343

docs/authoring-guide.md

@@ -497,6 +497,9 @@ SMA
   param length:I64  (bind {"I64": <v>})
 $ aura graph introspect --unwired < partial.json   # open slots of a partial op-script
 sub.rhs:F64
+$ aura graph introspect --taps tapped.json   # one row per declared tap: name, source wire, kind
+fast_ma  fast.value  F64
+spread  sub.value  F64
 $ aura graph introspect --content-id smacross.json           # SHA-256 of the canonical form
 597d719b7ac607158cda3e68cd497387620397a5e93087e23da512876dafba9a
 $ aura graph introspect --content-id smacross.json --identity-id  # + debug-name-blind identity id, combinable