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/runtime/tests/event-script.ts

@@ -140,7 +140,7 @@ export function plainTurn(startSeq: number, turn: number, ask: string, answer: s
   ]
 }
 
-/** Wrap raw events as view-less history entries (the wire shape history now returns). */
+/** Wrap raw events as view-less history entries (the wire shape history returns). */
 export function entries(events: readonly SessionEvent[]): { event: SessionEvent }[] {
   return events.map(event => ({ event }))
 }