fix: add Unicode normalization and homoglyph detection to tool name validation #3555

Job	Run time
checks / docs	1m 17s
checks / readme-snippets	13s
checks / pre-commit	32s
checks / test (3.13, locked, windows-latest)	1m 55s
checks / test (3.10, locked, windows-latest)	2m 2s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 10s
checks / test (3.11, lowest-direct, windows-latest)	2m 9s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 16s
checks / test (3.12, locked, windows-latest)	1m 44s
checks / test (3.12, lowest-direct, windows-latest)	2m 8s
checks / test (3.10, locked, ubuntu-latest)	1m 33s
checks / test (3.12, locked, ubuntu-latest)	1m 32s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 7s
checks / test (3.10, lowest-direct, windows-latest)	1m 49s
checks / test (3.14, locked, ubuntu-latest)	1m 25s
checks / test (3.14, lowest-direct, windows-latest)	2m 0s
checks / test (3.13, lowest-direct, windows-latest)	1m 52s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 24s
checks / test (3.11, locked, ubuntu-latest)	1m 15s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 29s
checks / test (3.11, locked, windows-latest)	1m 38s
checks / test (3.14, locked, windows-latest)	1m 49s
checks / test (3.13, locked, ubuntu-latest)	1m 11s
all-green	5s
	34m 35s

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