test: add Mac python.org locator coverage

[karthiknadig]

Adds focused direct coverage for the Mac python.org locator while continuing the #389 coverage work.

• Adds deterministic tests for python.org framework path matching, locator metadata, and non-macOS rejection.
• Narrows python.org classification to interpreter-shaped framework paths under /Library/Frameworks/Python.framework/Versions/{version}/bin/.
• Covers false positives for python-config scripts, nested bin paths, Homebrew framework paths, and unrelated frameworks.

Validation:

• cargo fmt --all
• wsl bash -lc 'cd /mnt/c/GIT/projects/python-environment-tools && cargo test -p pet-mac-python-org'
• wsl bash -lc 'cd /mnt/c/GIT/projects/python-environment-tools && cargo clippy --all -- -D warnings'

Refs #389

[github-actions]

Performance Report (macOS)

Metric	PR (P50)	PR (P95)	Baseline (P50)	Delta
Server Startup	56ms	481ms	76ms	-20ms
Full Refresh	115ms	25964ms	143ms	-28ms

Results based on 10 iterations. P50 = median, P95 = 95th percentile.

---

Legend

• 🚀 Significant speedup (>100ms faster)
• ✅ Faster than baseline
• ➖ No significant change
• 🔺 Slower than baseline (>100ms)
• ⚠️ Significant slowdown (>500ms)

[github-actions]

Test Coverage Report (Windows)

Metric	Value
Current Coverage	71.65%
Base Branch Coverage	71.26%
Delta	0.39% ✅

---

Coverage increased! Great work!

[github-actions]

Performance Report (Windows) ✅

Metric	PR (P50)	PR (P95)	Baseline (P50)	Delta	Change
Server Startup	9ms	14ms	12ms	-3ms	-25%
Full Refresh	147ms	1484ms	217ms	-70ms	-32.3%

Results based on 10 iterations. P50 = median, P95 = 95th percentile.

---

Legend

• 🚀 Significant speedup (>100ms faster)
• ✅ Faster than baseline
• ➖ No significant change
• 🔺 Slower than baseline (>100ms)
• ⚠️ Significant slowdown (>500ms)

[github-actions]

Test Coverage Report (Linux)

Metric	Value
Current Coverage	75.0%
Base Branch Coverage	74.6%
Delta	.4% ✅

---

Coverage increased! Great work!

[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Adds more deterministic matching and unit tests for identifying python.org macOS framework-based Python environments, reducing false positives while continuing work for #389.

Changes:

• Refines python.org environment detection to require /Library/Frameworks/Python.framework/Versions/<version>/bin/<python-exe>-shaped paths.
• Introduces helper functions for framework path and executable-name validation.
• Adds focused unit tests for accepted/rejected paths and non-macOS behavior.

Show a summary per file

File	Description
crates/pet-mac-python-org/src/lib.rs	Tightens path matching logic and adds unit tests for python.org framework detection.

Copilot's findings

• Files reviewed: 1/1 changed files
• Comments generated: 3

[github-actions]

Performance Report (Linux) ✅

Metric	PR (P50)	PR (P95)	Baseline (P50)	Delta	Change
Server Startup	1ms	1ms	1ms	0ms	0%
Full Refresh	75ms	380ms	77ms	-2ms	0%

Results based on 10 iterations. P50 = median, P95 = 95th percentile.

---

Legend

• 🚀 Significant speedup (>100ms faster)
• ✅ Faster than baseline
• ➖ No significant change
• 🔺 Slower than baseline (>100ms)
• ⚠️ Significant slowdown (>500ms)

[Copilot]

Copilot's findings

• Files reviewed: 1/1 changed files
• Comments generated: 0 new