feat: enable LiveTrackingSpanProcessor when UIPATH_LOG_TO_FILE is set

When `log_to_file` is enabled (via `UIPATH_LOG_TO_FILE=true`), also register
the `LiveTrackingSpanProcessor` for span tracing. This ensures the file logging
repro path matches deployed behavior where span upserts run in background threads
alongside the main execution.

Companion PR: UiPath/uipath-runtime-python#103

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: smflorentino

packages/uipath/src/uipath/_cli/cli_eval.py

@@ -393,7 +393,9 @@ async def execute_eval():
                         )
 
                         if (
-                            ctx.job_id or should_register_progress_reporter
+                            ctx.job_id
+                            or ctx.log_to_file
+                            or should_register_progress_reporter
                         ) and UiPathConfig.is_tracing_enabled:
                             # Live tracking for Orchestrator or Studio Web
                             # Uses UIPATH_TRACE_ID from environment for trace correlation