Module builder 

Background HNSW index builder thread.

Each Data Plane core has one builder thread that processes HNSW construction requests sequentially (FIFO).

Functions

spawn_builder

Spawn a background HNSW builder thread for a Data Plane core.

Type Aliases

BuildSender

Sender half: TPC core sends build requests to the builder thread.

CompleteReceiver

Receiver half: TPC core receives completed builds.