Attach HyDE-specific metadata to this audit operation.
Hypothesis text, effective threshold, and step count.
The generated hypothetical answer used for embedding.
Final similarity threshold after adaptive stepping.
Number of adaptive threshold steps taken.
this for fluent chaining.
Finalizes the operation, records duration, computes relevance score stats, and adds the entry to the parent collector.
Number of results this operation produced.
Optional overrideDurationMs: numberOptional override for duration (when timing is measured externally).
Fluent handle for a single in-flight RAG operation. Call
.complete(resultsCount)to finalize timing and add it to the collector.