mcp/client: add list_all_* helpers with pagination safety guards #3612

Job	Run time
checks / docs	59s
checks / pre-commit	57s
checks / readme-snippets	15s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 23s
checks / test (3.10, locked, windows-latest)	1m 56s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 25s
checks / test (3.10, lowest-direct, windows-latest)	1m 34s
checks / test (3.11, locked, windows-latest)	2m 2s
checks / test (3.11, lowest-direct, windows-latest)	2m 4s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 29s
checks / test (3.10, locked, ubuntu-latest)	1m 26s
checks / test (3.11, locked, ubuntu-latest)	1m 9s
checks / test (3.12, locked, ubuntu-latest)	1m 31s
checks / test (3.13, locked, windows-latest)	2m 28s
checks / test (3.14, lowest-direct, windows-latest)	1m 41s
checks / test (3.12, lowest-direct, windows-latest)	1m 54s
checks / test (3.14, locked, ubuntu-latest)	1m 17s
checks / test (3.12, locked, windows-latest)	1m 52s
checks / test (3.13, lowest-direct, windows-latest)	2m 0s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 12s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 22s
checks / test (3.13, locked, ubuntu-latest)	1m 14s
checks / test (3.14, locked, windows-latest)	1m 57s
all-green	5s
	35m 12s

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