Split protocol types into a standalone `mcp-types` package (#2973) #3003

Job	Run time
checks / pre-commit	44s
checks / readme-snippets	12s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 4s
checks / test (3.10, lowest-direct, windows-latest)	1m 42s
checks / test (3.13, locked, windows-latest)	1m 26s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 11s
checks / test (3.13, locked, ubuntu-latest)	53s
checks / test (3.11, locked, ubuntu-latest)	1m 0s
checks / test (3.11, locked, windows-latest)	1m 29s
checks / test (3.14, lowest-direct, ubuntu-latest)	58s
checks / test (3.11, lowest-direct, windows-latest)	2m 14s
checks / test (3.10, locked, ubuntu-latest)	1m 0s
checks / test (3.13, lowest-direct, ubuntu-latest)	56s
checks / test (3.13, lowest-direct, windows-latest)	1m 33s
checks / test (3.12, lowest-direct, ubuntu-latest)	56s
checks / test (3.10, locked, windows-latest)	1m 44s
checks / test (3.12, locked, ubuntu-latest)	1m 6s
checks / test (3.14, locked, windows-latest)	2m 46s
checks / test (3.14, lowest-direct, windows-latest)	1m 25s
checks / test (3.12, lowest-direct, windows-latest)	1m 46s
checks / test (3.12, locked, windows-latest)	1m 30s
checks / test (3.14, locked, ubuntu-latest)	2m 21s
all-green	8s
	30m 4s

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