- Add resolved_parent_context property to BaseTraceInfo for reusable parent context extraction
- Refactor enterprise_trace.py to use property instead of duplicated dict plucking (~19 lines eliminated)
- Fix UUID validation in exporter.py with specific error logging for invalid trace correlation IDs
- Add error isolation in event_handlers.py to prevent telemetry failures from breaking user operations
- Replace pickle-based payload_fallback with JSON storage rehydration for security
- Update TelemetryEnvelope to use Pydantic v2 ConfigDict with extra='forbid'
- Update tests to reflect contract changes and new error handling behavior
- Change insecure parameter from API key-based to URL scheme-based detection
- https:// endpoints now correctly use TLS (insecure=False)
- All other endpoints (http://, no scheme) use insecure=True
- Update tests to reflect URL scheme-based logic
- Remove incorrect documentation claiming API key controls TLS
- Add APP_CREATED, APP_UPDATED, APP_DELETED counters to EnterpriseTelemetryCounter
- Create EnterpriseTelemetryEvent StrEnum for type-safe event names
- Update metric_handler to use new app-specific counters with labels (tenant_id, app_id, mode)
- Convert all event_name strings to EnterpriseTelemetryEvent enum values
- Update exporter to create OTEL meters for new app counters (dify.app.created.total, etc.)
- Update tests to verify new counter behavior and enum usage
