docs: #216 cycle-close audit — run-transcript regimes + glossary avoid reconcile

refs #216

Architect drift review over 68317ec..6e22c98 (two items, both fixed here;
code and ledger verified drift-clean):

- The authoring guide's 'Register and run' transcript still showed the
  pre-regime world (2 cells, regime-less family ids) directly under the
  worked example this cycle made two-regime / 4-cell. The transcript now
  shows the -r1 family-id suffix, per-cell regime fields (ordinal 0
  serialize-skipped, the established byte-stability pattern), the four
  cells, per-regime generalization entries, and a prose paragraph tying
  the 4 cells to the validate count (regimes compared, never pooled).
- The fresh glossary entry declared 'Avoid: stop regime' while this very
  cycle ships 'stop regimes' in its hint strings and guide prose — an
  Avoid line the codebase itself violates records intent, not reality.
  'stop regime' is dropped from Avoid ('risk section' stays: it wrongly
  suggests a section rather than an axis list).

What holds (architect): content-id parity untouched (probe is read-only,
canonical bytes unchanged); the validate cell product mirrors the exec
cross-product exactly; all six spec acceptance criteria shipped.

Regression: cargo test --workspace 62 result groups / 0 failures; clippy
-D warnings clean; cargo doc 0 warnings (all at 6e22c98; this commit is
docs-only).

docs/authoring-guide.md

@@ -350,19 +350,30 @@ $ aura campaign register mra_3_campaign_full_v2.json
 registered campaign 42edebd2159de708009ba21e1ed4aea2cffabc373bf761c5765f79c190b677bd (…/runs/campaigns/42ed…json)
 $ aura campaign run 42edebd2159de708009ba21e1ed4aea2cffabc373bf761c5765f79c190b677bd
 {"family_id":"42edebd2-0-GER40-w0-s0-0","report":{...}}
+{"family_id":"42edebd2-0-GER40-w0-s0-0-r1","report":{...}}
 …
 {"campaign_run":{"campaign":"42edebd2…","process":"cd9127…","run":0,"seed":42,
-  "cells":[{"strategy":"597d719b…","instrument":"GER40","window_ms":[...],"stages":[
+  "cells":[{"strategy":"597d719b…","instrument":"GER40","window_ms":[...],
+    "regime":{"vol":{"length":3,"k":1.5}},"stages":[
     {"block":"std::sweep",...},{"block":"std::gate","survivor_ordinals":[0,1,2]},
     {"block":"std::walk_forward",...},{"block":"std::monte_carlo","bootstrap":{"pooled_oos":{...}}}]},
-   {"strategy":"597d719b…","instrument":"FRA40",...}],
+   {"strategy":"597d719b…","instrument":"GER40","regime":{"vol":{"length":3,"k":3.0}},"regime_ordinal":1,...},
+   {"strategy":"597d719b…","instrument":"FRA40",...},
+   {"strategy":"597d719b…","instrument":"FRA40","regime_ordinal":1,...}],
   "generalizations":[{"strategy_ordinal":0,"window_ordinal":0,
     "generalization":{"selection_metric":"expectancy_r","n_instruments":2,
       "worst_case":0.0436…,"sign_agreement":2,"per_instrument":[["GER40",0.0436…],["FRA40",0.0484…]]},
-    "winners":[...]}],
+    "winners":[...]},
+   {"strategy_ordinal":0,"window_ordinal":0,"regime_ordinal":1,...}],
   "trace_name":"42edebd2-0"}}
 ```
 
+With two stop regimes every (instrument, window) cell runs twice — the four
+cells above are the "4 cell(s)" the validate summary counted. The second
+regime's family ids and trace dirs carry the `-r1` ordinal suffix (the
+default/first regime stays unsuffixed), each cell record names its regime,
+and generalization is keyed per regime — regimes are compared, never pooled.
+
 `aura campaign run` is register-then-run sugar for a `.json` file, but the
 canonical address is always the content id — running a bare file the first
 time registers it implicitly. `aura campaign runs` lists stored

docs/glossary.md

@@ -212,7 +212,7 @@ The per-symbol composite turning a bias into a managed position, **in R**: `stop
 A node that converts a finer stream to a coarser bar stream, emitting a completed bar only at the boundary so no partial bar ever leaks (enforcing no look-ahead). Clock-sensitive.
 
 ### risk regime
-**Avoid:** stop regime, risk section
+**Avoid:** risk section
 One entry of a campaign document's structural risk axis (`risk`): a
 serializable protective-stop regime (sole variant `vol{length,k}`) the matrix
 runs every cell under, so cells differ by execution discipline, never by