APM

Fixed a reentrant SpanData borrow panic in tracing.

Fixed an issue where traced Snowflake cursor calls failed when command is passed as a keyword argument to execute or executemany. Also fixed a rare crash when using gevent.

Feature Flagging and Experimentation now loads configuration agentless over HTTPS by default, requiring DD_API_KEY. LLM Observability adds list_experiments(), agent versioning, and submit_feedback(); several tracing and integration fixes land, including session-status correctness and reduced Django memory usage for non-web workers.

Fixed a crash in uwsgi workers when exiting from a SIGTERM signal.