feat(vom): expose record-safe semantic observations

Share the VOM capture pipeline with recording, enrich rendered refs, and support value redaction without regressing cooperative cancellation.

apps/extension/src/tools/capture-vom-observation.ts

@@ -0,0 +1,5 @@
+export {
+  type CaptureVomObservationOptions,
+  type CaptureVomObservationResult,
+  captureVomObservation,
+} from "./observation";