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/session/session-telemetry-otel/src/index.ts

@@ -253,11 +253,11 @@ export class TelemetryOtel extends Telemetry {
   // The Service Definition's optional flush() hint is deliberately NOT implemented. The
   // batch processor exports on its own cadence (`processor.scheduledDelayMillis`,
   // the SDK's documented knob), and this backend is the SDK pipeline's only
-  // caller — forwarding the hint to `forceFlush()` was the sole source of
+  // caller — forwarding the hint to `forceFlush()` would be the sole source of
   // concurrent flushes, whose undocumented interactions with shutdown's
   // internal drain (concurrent-flush guard, provider-level flush timeout)
-  // silently dropped tail records. Removal history and the revival trigger:
-  // the revival Agent Note.
+  // silently drop tail records. Rationale and the revival trigger: the
+  // revival Agent Note.
 
   /**
    * Ask the SDK to drain and quiesce, but reject after the backend-owned