chore: remove socket-registry/CLAUDE.md cross-reference #1360

Job	Run time
Run CI Pipeline / 🧹 Lint Check	23s
Run CI Pipeline / 🔍 Type Check	26s
Run CI Pipeline / 🧪 Test Matrix (24, ubuntu-latest)	1m 7s
Run CI Pipeline / 🧪 Test Matrix (22, ubuntu-latest)	1m 7s
Run CI Pipeline / 🧪 Test Matrix (24, windows-latest)	2m 4s
Run CI Pipeline / 🧪 Test Matrix (22, windows-latest)	2m 17s
Test (Isolated)	-1s
	7m 23s

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