Migrate Langfuse → Arize AX

Move Langfuse data into Arize AX. Historical traces are in scope — export observations and ingest into AX via OTLP with explicit attribute mapping.

SPACE — Prefer user-provided space name/ID; do not paginate ax spaces list first just to look it up.

When to use

• Migrate / import Langfuse → Arize AX
• Move Langfuse observations/traces into an AX project
• Import Langfuse datasets into AX

Core principles