Add axis-G Rust vs Python backend parity edge-case tests #1243

Job	Run time
Pure Python Fallback	56m 55s
Rust Unit Tests (macos-latest)	1m 21s
Rust Unit Tests (ubuntu-24.04-arm)	1m 22s
Rust Unit Tests (ubuntu-latest)	1m 22s
Rust Unit Tests (windows-latest)	2m 12s
Python Tests (ubuntu-24.04-arm, py3.11)	24m 46s
Python Tests (macos-latest, py3.14)	22m 20s
Python Tests (ubuntu-latest, py3.14)	42m 13s
Python Tests (macos-latest, py3.13)	21m 16s
Python Tests (windows-latest, py3.11)	27m 44s
Python Tests (windows-latest, py3.13)	38m 49s
Python Tests (ubuntu-24.04-arm, py3.13)	25m 19s
Python Tests (macos-latest, py3.11)	17m 59s
Python Tests (ubuntu-latest, py3.11)	41m 10s
Python Tests (ubuntu-latest, py3.13)	42m 26s
Python Tests (windows-latest, py3.14)	39m 20s
Python Tests (ubuntu-24.04-arm, py3.14)	25m 57s
	7h 12m 31s

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