feat: add /review-pr Claude Code command for PR reviews #626

Job	Run time
checks / readme-snippets	12s
checks / pre-commit	30s
checks / test (3.10, locked, windows-latest)	2m 50s
checks / test (3.11, lowest-direct, windows-latest)	2m 37s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 1s
checks / test (3.10, locked, ubuntu-latest)	56s
checks / test (3.10, lowest-direct, ubuntu-latest)	51s
checks / test (3.13, locked, ubuntu-latest)	46s
checks / test (3.11, locked, ubuntu-latest)	56s
checks / test (3.12, lowest-direct, windows-latest)	3m 28s
checks / test (3.13, lowest-direct, ubuntu-latest)	54s
checks / test (3.12, locked, windows-latest)	3m 27s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 19s
checks / test (3.12, locked, ubuntu-latest)	56s
checks / test (3.14, locked, ubuntu-latest)	2m 21s
checks / test (3.11, locked, windows-latest)	2m 30s
checks / test (3.13, lowest-direct, windows-latest)	2m 49s
checks / test (3.12, lowest-direct, ubuntu-latest)	56s
checks / test (3.14, lowest-direct, windows-latest)	2m 27s
checks / test (3.10, lowest-direct, windows-latest)	2m 26s
checks / test (3.13, locked, windows-latest)	2m 29s
checks / test (3.14, locked, windows-latest)	3m 19s
all-green	4s
	40m 4s

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