HAD Phase 4.5 C: linearity-family pretests under survey #1547

Job	Run time
Pure Python Fallback	1h 4m 30s
Rust Unit Tests (ubuntu-latest)	1m 22s
Rust Unit Tests (windows-latest)	2m 7s
Rust Unit Tests (macos-latest)	1m 2s
Rust Unit Tests (ubuntu-24.04-arm)	1m 33s
Python Tests (windows-latest, py3.14)	51m 26s
Python Tests (macos-latest, py3.11)	28m 48s
Python Tests (ubuntu-24.04-arm, py3.11)	33m 11s
Python Tests (windows-latest, py3.13)	50m 31s
Python Tests (ubuntu-latest, py3.14)	51m 56s
Python Tests (ubuntu-latest, py3.11)	53m 31s
Python Tests (macos-latest, py3.14)	26m 26s
Python Tests (ubuntu-24.04-arm, py3.13)	33m 18s
Python Tests (ubuntu-24.04-arm, py3.14)	33m 53s
Python Tests (ubuntu-latest, py3.13)	54m 48s
Python Tests (windows-latest, py3.11)	36m 7s
Python Tests (macos-latest, py3.13)	23m 59s
	9h 8m 28s

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