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-models/src/client/CustomProviderCard.tsx

@@ -118,7 +118,7 @@ export function CustomProviderCard(props: CustomProviderCardProps): ReactNode {
     // next unmet gate — which is satisfied, and reads as a second, false fault.
     || keyFailure !== undefined
     // Same for the route id, and it must be tested rather than assumed: the
-    // fallback arm below reads "no models yet", so an unmet route gate used to
+    // fallback arm below reads "no models yet", so an unmet route gate would
     // fall through to it and contradict the filled-in list right above.
     || route.length === 0 || routeInvalid || routeTaken
     ? undefined

packages/client/ui-models/src/client/ModelsSection.module.css

@@ -435,12 +435,12 @@
   line-height: 18px;
 }
 
-/* Model list, shared with the pi-ai provider form (PR #1368): one bordered
+/* Model list, shared with the pi-ai provider form: one bordered
    entry per model, id and display name on the row, capacities behind the
-   row's own disclosure. The token names are this file's, not that branch's —
+   row's own disclosure. The rules use this stylesheet's token vocabulary —
    `--dsw-alias-border-subtle`, `--dsw-alias-text-tertiary`, and
-   `--dsw-alias-text-primary` are undefined here and resolve to their
-   light-mode literals, which is the defect this section was just moved off. */
+   `--dsw-alias-text-primary` are undefined here and would resolve to their
+   light-mode literals. */
 .modelList {
   display: flex;
   flex-direction: column;