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-command/src/client/PopupSelectView.tsx

@@ -54,8 +54,8 @@ export function PopupSelectView({ popup, t }: PopupSelectViewProps) {
     cardRef.current?.querySelector('[aria-selected="true"]')?.scrollIntoView({ block: 'nearest' })
   }, [active])
 
-  // Focus ownership: the search input grabs on open (the design's
-  // transient-layer rule), and ANY outside pointer interaction dismisses —
+  // Focus ownership: the search input grabs on open, and ANY outside
+  // pointer interaction dismisses —
   // capture phase so a click landing anywhere else (textarea included)
   // closes the shell before its own handlers run; that click's target then
   // takes focus naturally, so no focusComposer here.

packages/client/ui-command/src/client/popup.ts

@@ -1,5 +1,5 @@
 /**
- * Headless popupSelect shell state (design §10): one controller per client
+ * Headless popupSelect shell state: one controller per client
  * session, owned by CommandService's per-session map and torn down by the
  * session scope disposer. The shell is a transient layer (never in the input
  * state machine): it loads options once, filters them locally against the