OTLP span array sanitization fixed; gen AI performance metrics added

Patch Changes

• b94d22f: Sanitize OpenTelemetry span array attributes so they no longer emit invalid OTLP values (arrays containing undefined/null/objects, or arrays mixing primitive types). Such values previously failed telemetry ingestion with deserializing message invalid value: map, expected map with a single key and flooded function logs with errors.
• d5cac7c: feat(otel): emit performance metrics via gen ai semantics
• Updated dependencies [0416e3e]
  • @ai-sdk/provider@4.0.0-beta.20
  • ai@7.0.0-beta.184