Re-embeds entries, chunks, and entities using a pluggable embedding function and tracks per-row provenance via embedding_model_id.

Options

• :embedding_fn — (text -> {:ok, vector, model_id} | {:ok, vector} | {:error, term}) called per row. Defaults to a function that delegates to the configured Recollect.EmbeddingProvider (existing behavior).

• :progress_callback — (progress_map -> :ok) invoked per batch with %{table:, processed:, total:, current_batch:}.
• :batch_size — rows per batch (default: 100).
• :concurrency — parallel embedding tasks per batch (default: 2).
• :tables — which tables to re-embed (default: all three).
• :scope — what to select for re-embedding:
  • :nil_only (default) — rows where embedding IS NULL
  • :all — every row in the table
  • {:stale_model, current_model_id} — rows whose stored embedding_model_id differs from current_model_id or is NULL