feat(oxfmt): trace which files are being formatted via OXC_LOG=debug

[Boshen]

closes #16607

[Copilot]

Pull request overview

This PR adds debug-level tracing to show which files are being formatted when using OXC_LOG=debug environment variable. The change enables users to monitor formatting progress and troubleshoot issues by seeing exactly which files are being processed.

• Adds tracing crate dependency to the workspace and oxfmt
• Inserts a debug log statement before formatting each file
• Updates tracing and related crate versions in Cargo.lock

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated 1 comment.

File	Description
apps/oxfmt/src/cli/service.rs	Adds debug log statement to trace file formatting with relative path display
apps/oxfmt/Cargo.toml	Adds tracing crate dependency from workspace
Cargo.toml	Defines tracing version 0.1.43 in workspace dependencies
Cargo.lock	Updates tracing, tracing-attributes, and tracing-core to latest patch versions

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[codspeed-hq]

CodSpeed Performance Report

Merging #16627 will degrade performances by 3.06%

_{Comparing 12-09-feat_oxfmt_trace_which_files_are_being_formatted_via_oxc_log_debug_ (92fc10a) with main (14d803a)}

Summary

❌ 1 regression
✅ 41 untouched
⏩ 3 skipped¹

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Mode	Benchmark	BASE	HEAD	Change
❌	Simulation	minifier[cal.com.tsx]	36.1 ms	37.2 ms	-3.06%

Footnotes

1. 3 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

[leaysgur]

Merge activity

• Dec 9, 4:03 AM UTC: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• Dec 9, 4:03 AM UTC: leaysgur added this pull request to the Graphite merge queue.
• Dec 9, 4:10 AM UTC: Merged by the Graphite merge queue.