Fix critical tracing module issues and improve reliability #962
+138
−92
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Typecheck Fixes:
• Explicitly export set_trace_provider/get_trace_provider in all to resolve mypy errors.
• Add DefaultTraceProvider to all for consistency.
Reliability Improvements:
• Prevent crashes when custom providers lack a shutdown() method (via hasattr check).
• Raise clear RuntimeError for invalid AGENT_TRACE_PROVIDER values instead of silently falling back.
Code Quality:
• Reordered imports for PEP8 compliance and readability.
• Simplified error handling in provider initialization.
Documentation:
• Updated logging to use logging.debug for success messages and logging.warning for failures.