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/tests/popup-view.spec.tsx

@@ -1,6 +1,6 @@
 // @vitest-environment jsdom
 /**
- * PopupSelectView interaction spec (design §10.2): the search input takes
+ * PopupSelectView interaction spec: the search input takes
  * focus on open and plain typing filters locally, ↑↓ move the filtered
  * highlight while ←→ stay native to the input, Enter selects single-flight,
  * Escape dismisses back through focusComposer, outside pointerdown dismisses

packages/client/ui-command/tests/popup.spec.ts

@@ -1,5 +1,5 @@
 /**
- * PopupSelectController behavior (design §10.2/§10.3): one options load per
+ * PopupSelectController behavior: one options load per
  * open with local search filtering, filtered highlight movement,
  * single-flight select with open-time context, consume-on-success (CAS miss
  * benign), failure-keeps-open retry semantics for both options and onSelect,