Build

`CLAUDE.md`: fix filename and add to `.gitattributes` #785

Job	Run time
Coding Standard	21s
PHPStan (8.0)	20s
PHPStan (8.3)	20s
PHPStan (8.1)	17s
PHPStan (8.2)	20s
PHPStan (7.4)	19s
PHPStan (8.4)	19s
Lint (8.2)	11s
Lint (7.4)	11s
Lint (8.3)	11s
Lint (8.1)	12s
Lint (8.0)	14s
Lint (8.4)	14s
Tests (ubuntu-latest, 8.0, lowest)	14s
Tests (ubuntu-latest, 8.3, highest)	14s
Tests (windows-latest, 7.4, lowest)	36s
Tests (windows-latest, 8.3, lowest)	36s
Tests (ubuntu-latest, 8.0, highest)	15s
Tests (ubuntu-latest, 8.4, highest)	16s
Tests (ubuntu-latest, 8.2, lowest)	19s
Tests (ubuntu-latest, 7.4, highest)	19s
Tests (windows-latest, 8.0, highest)	35s
Tests (ubuntu-latest, 8.2, highest)	15s
Tests (windows-latest, 8.0, lowest)	33s
Tests (windows-latest, 8.1, lowest)	38s
Tests (ubuntu-latest, 7.4, lowest)	15s
Tests (windows-latest, 8.2, highest)	49s
Tests (ubuntu-latest, 8.1, lowest)	19s
Tests (windows-latest, 8.3, highest)	1m 9s
Tests (ubuntu-latest, 8.4, lowest)	15s
Tests (windows-latest, 8.1, highest)	38s
Tests (windows-latest, 8.4, highest)	36s
Tests (windows-latest, 8.4, lowest)	37s
Tests (windows-latest, 8.2, lowest)	39s
Tests (ubuntu-latest, 8.1, highest)	14s
Tests (windows-latest, 7.4, highest)	44s
Tests (ubuntu-latest, 8.3, lowest)	18s
	14m 52s

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