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/web-react/src/scoped-slots.tsx

@@ -650,7 +650,7 @@ function SlotOutlet({ slotKey, ownerProps, opts }: {
   const spec = host.specOf(slotKey)
   // Undeclared (or no-longer-declared) keys render empty: a declaring entry's
   // unload returns the slot to the undeclared state while retained elements
-  // may still be mounted — natural empty, not an ownership failure (§9).
+  // may still be mounted — natural empty, not an ownership failure.
   if (!spec) return null
   const strictSessionAbsent = spec.scope === 'session' && sessionInfo.sessionId === undefined
   if (strictSessionAbsent && (spec.kind !== 'chain' || !opts?.overlay)) {
@@ -776,7 +776,7 @@ function SlotOutlet({ slotKey, ownerProps, opts }: {
   return <>{list.map(item => guarded(item.entry, entryKeyOf(item.entry)))}</>
 }
 
-/** Root outlet: the shell's single ctx-level render entry — an unregistered 'root' is a boot-order failure, never a silent blank (§1). */
+/** Root outlet: the shell's single ctx-level render entry — an unregistered 'root' is a boot-order failure, never a silent blank. */
 function RootOutlet({ ownerProps }: { ownerProps: object }) {
   const host = useHost()
   useSyncExternalStore(

packages/client/web-react/src/session-provider.tsx

@@ -84,7 +84,7 @@ function useAbsentSnapshot<S>(_selector: (snapshot: never) => S, _equal?: (a: S,
 }
 
 /**
- * The useProjection framework seat (session-projection RFC), one bound
+ * The useProjection framework seat (docs/subsystems/session-projection.md), one bound
  * function per provide bundle (cached by info identity — components may hold
  * it across renders). Key-addressed: the key resolves a per-session value
  * face off the projection store; the bound selector hook comes from the same