docs: purge chain-of-thought leakage from prose

Delete design-session citations (decision/audit/plan ordinals, stack
positions), change narration, review choreography, and reviewer-addressed
justification from comments, JSDoc, docs, READMEs, Agent Notes, tests, and
generator templates; restate every affected fact as current-state contract
prose. Fix generated docs at their sources and regenerate the catalogs and
cordis-surface regions; re-paste type-equiv blocks; update every bilingual
counterpart and re-record the pairs. Record the citation rule in the
committed-artifact-citations Agent Note.

packages/client/ui-trajectory/src/client/layout.ts

@@ -935,8 +935,8 @@ function expandSubCalls(
             isError: sub.isError,
           }
           : {}),
-        // PR3's start/settle pair carries per-sub-call wall time; a running
-        // (unsettled) or pre-pair log entry shows the em dash.
+        // The code-dispatch start/settle pair carries per-sub-call wall time;
+        // a running (unsettled) or pre-pair log entry shows the em dash.
         timeSeconds: settled ? durationSeconds(sub.time, sub.callTime) : null,
         startedAt: settled
           ? finiteTime(sub.callTime)