Python SDK v7.1.0

Added

• client.spans.query — a cursor-paginated list of spans across all traces in a project, filtered by a span-field FilterSet (operation, toolName, model, provider, sessionId, traceId, tags, duration, cost, tokensInput/tokensOutput — the DSL keys are camelCase regardless of SDK language) and an optional time range. The row-level, span-grain complement to client.analytics.query with stream="spans" (aggregates) — use it to drill from an aggregate into the individual spans behind it.