Server-side 2026-07-28 stateless support: classifier, driver split, server/discover #2880

Job	Run time
checks / pre-commit	45s
checks / readme-snippets	14s
checks / test (3.10, locked, windows-latest)	1m 14s
checks / test (3.11, lowest-direct, windows-latest)	1m 39s
checks / test (3.10, locked, ubuntu-latest)	52s
checks / test (3.10, lowest-direct, windows-latest)	1m 31s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 6s
checks / test (3.11, locked, ubuntu-latest)	57s
checks / test (3.12, lowest-direct, windows-latest)	1m 29s
checks / test (3.13, locked, ubuntu-latest)	56s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 9s
checks / test (3.11, locked, windows-latest)	1m 41s
checks / test (3.12, lowest-direct, ubuntu-latest)	57s
checks / test (3.13, locked, windows-latest)	1m 31s
checks / test (3.12, locked, windows-latest)	1m 28s
checks / test (3.13, lowest-direct, windows-latest)	1m 41s
checks / test (3.12, locked, ubuntu-latest)	1m 2s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 2s
checks / test (3.14, locked, ubuntu-latest)	1m 57s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 0s
checks / test (3.14, lowest-direct, windows-latest)	1m 25s
checks / test (3.14, locked, windows-latest)	2m 24s
all-green	2s
	28m 2s

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