chore: tidy up perf-investigation aftermath

[zackees]

Summary

• Stop tracking ad-hoc port_scan_*.txt captures. PR feat(cli): fbuild port scan — enumerate ports + resolve VID:PID to vendor/product via FastLED/boards #741 added the fbuild port scan command; users sometimes redirect its output for diagnostic comparison. Adds matching .gitignore entries.
• Refresh ci/bench-results/REPORT.md to reflect the full cumulative story after both perf PRs:
  • No-source-change reinstall: 14.9s → 1.1s (13.6×, PR perf(uv): rebuild fbuild ~14x faster on no-source-change reinstall #743)
  • Real .rs edit + uv run: 100.1s → 18.9s (5.3×, PR perf(build): default to dev profile + rust-lld for ~5x faster Rust-edit rebuild #744)
  • The remaining ~14s touch-only floor is soldr/zccache wrapper overhead, profiled to the second and filed upstream as zackees/soldr#883.

Test plan

• port_scan_*.txt patterns excluded from git status after creating dummy files
• Report sections reference the right PR numbers and the live soldr issue link

🤖 Generated with Claude Code

Summary by CodeRabbit

• Documentation

  • Updated benchmark report documenting performance improvements for uv run and Rust source edits, including rebuilt timing measurements and optimization scenarios.

• Chores

  • Updated git configuration to exclude local diagnostic capture files.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: d5b30b84-61f6-40fa-b322-b7cefce45964

📥 Commits

Reviewing files that changed from the base of the PR and between 5087c8f and cbe30ce.

📒 Files selected for processing (2)

• .gitignore
• ci/bench-results/REPORT.md

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📝 Walkthrough

Walkthrough

Adds two .gitignore patterns to exclude local fbuild port scan diagnostic output files. Updates ci/bench-results/REPORT.md to document PRs #743 and #744 with a restructured problem statement, new fix descriptions, updated timing tables, and revised reproduction instructions.

Changes

Housekeeping and Benchmark Documentation

Layer / File(s)	Summary
Gitignore for port scan output .gitignore	Adds patterns port_scan_stderr*.txt and port_scan_stdout*.txt with comments to prevent fbuild port scan diagnostic files from being committed.
Benchmark report rewrite ci/bench-results/REPORT.md	Restructures the report to separate forced reinstall and real Rust edit rebuild problems, documents PR #743 (CARGO_TARGET_DIR pinning and mtime-based cargo skip) and PR #744 (dev build profile defaults, Cargo opt-level, rust-lld Windows linker), and replaces old scenario tables with updated timing measurements, reproduction commands, and file list.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐇 Two little patterns, now safely ignored,
No scan files shall clutter the repo's accord.
The benchmark rewrites with tables anew,
PR seven-four-three and four-four-four too!
Hops along happily, the rabbit's content —
Clean logs and timed builds, well worth the event. 🌿

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/tidy-perf-report

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