Update copilot instructions

[samueltardieu]

Summary by CodeRabbit

• Documentation
  • Added guidance clarifying test behavior when adding new tests during bug fixes (Before Committing and Critical Validation Rules).
  • Expanded Quick Reference with consolidated commands for testing, formatting, linting, checking, and building.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: b1cc2380-3434-4dfa-8289-ce014920a2cd

📥 Commits

Reviewing files that changed from the base of the PR and between 8f54de8 and 165b7e9.

📒 Files selected for processing (1)

• .github/copilot-instructions.md

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📝 Walkthrough

Walkthrough

Updated .github/copilot-instructions.md with documentation-only edits: added guidance about including tests when fixing bugs (appearing twice) and expanded the Quick Reference with consolidated commands for testing, formatting, linting, checking, and building; no code or API changes.

Changes

Cohort / File(s)	Summary
Documentation Update /.github/copilot-instructions.md	Added a guideline requiring tests when addressing bug fixes (documented in two places) and expanded the Quick Reference with consolidated commands for test, format, lint, check, and build. No functional/code changes.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 A tiny note in the docs I write,
Tests beside fixes keeps things right.
Quick commands snug in a tidy list,
Hopping through changes with a happy twist! 🥕✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'Update copilot instructions' accurately describes the main change—a documentation update to the copilot instructions file with added guidance and expanded command references.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch push-wuxrrtzzvrzk

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[github-actions]

📊 iai-callgrind Benchmark Results

⚠️ 1 Regression(s) Detected

| Benchmark | Base | PR | Change | % |
|-----------|------|----|---------|
| iai_separate_components::bench_separate_components | 15,991,301 | 16,008,177 | +16,876 | +0.11% |

✅ 1 Improvement(s)

| Benchmark | Base | PR | Change | % |
|-----------|------|----|---------|
| iai_algos::corner_to_corner_idastar | 194,445 | 193,779 | -666 | -0.34% |

➡️ 18 Unchanged (within ±0.1%)

Click to expand

Benchmark	Instructions
iai_algos::corner_to_corner_astar	150,136
iai_algos::corner_to_corner_bfs	2,947,648
iai_algos::corner_to_corner_bfs_bidirectional	3,881,580
iai_algos::corner_to_corner_dfs	3,592,021
iai_algos::corner_to_corner_dijkstra	3,734,617
iai_algos::corner_to_corner_fringe	216,701
iai_algos::corner_to_corner_iddfs	3,718,131
iai_algos::no_path_astar	3,348,856
iai_algos::no_path_bfs	2,756,526
iai_algos::no_path_bfs_bidirectional	3,383,731
iai_algos::no_path_dfs	3,629,686
iai_algos::no_path_dijkstra	3,691,818
iai_algos::no_path_fringe	4,417,030
iai_edmondskarp::wikipedia_example_dense	38,324
iai_edmondskarp::wikipedia_example_sparse	65,760
iai_kuhn_munkres::kuhn_munkres_size_128	4,965,503
iai_kuhn_munkres::kuhn_munkres_size_32	303,986
iai_kuhn_munkres::kuhn_munkres_size_64	1,434,909

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iai-callgrind measures instructions executed, which is deterministic and not affected by system load.

[codspeed-hq]

Merging this PR will degrade performance by 19.62%

❌ 6 regressed benchmarks
✅ 32 untouched benchmarks

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

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
❌	no_path_astar	1.5 ms	1.8 ms	-13.5%
❌	Compare kuhn_munkres with different input sizes[128]	1.6 ms	2 ms	-19.62%
❌	Compare kuhn_munkres with different input sizes[64]	483.7 µs	581 µs	-16.74%
❌	Compare kuhn_munkres with different input sizes[32]	108.3 µs	125.8 µs	-13.88%
❌	Compare kuhn_munkres with different input sizes[256]	19 ms	22.8 ms	-16.83%
❌	Compare kuhn_munkres with different input sizes[512]	454.2 ms	533.1 ms	-14.8%

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_{Comparing push-wuxrrtzzvrzk (165b7e9) with main (b898eee)¹}

Footnotes

1. No successful run was found on main (3761d48) during the generation of this report, so b898eee was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩