feat!: Rust-backed openjd.model._v1, openjd.expr, openjd.sessions._v1 via PyO3 #567

Job	Run time
Python (windows-latest, 3.9) / windows-latest, python 3.9	3m 6s
Python (windows-latest, 3.14) / windows-latest, python 3.14	3m 2s
Python (macos-latest, 3.11) / macos-latest, python 3.11	3m 1s
Python (macos-latest, 3.9) / macos-latest, python 3.9	2m 56s
Python (windows-latest, 3.13) / windows-latest, python 3.13	3m 2s
Python (macos-latest, 3.13) / macos-latest, python 3.13	2m 59s
Python (macos-latest, 3.14) / macos-latest, python 3.14	3m 14s
Python (ubuntu-latest, 3.9) / ubuntu-latest, python 3.9	3m 7s
Python (windows-latest, 3.12) / windows-latest, python 3.12	3m 3s
Python (ubuntu-latest, 3.10) / ubuntu-latest, python 3.10	3m 11s
Python (ubuntu-latest, 3.14) / ubuntu-latest, python 3.14	3m 6s
Python (macos-latest, 3.10) / macos-latest, python 3.10	3m 14s
Python (macos-latest, 3.12) / macos-latest, python 3.12	3m 0s
Python (ubuntu-latest, 3.13) / ubuntu-latest, python 3.13	3m 2s
Python (windows-latest, 3.10) / windows-latest, python 3.10	3m 3s
Python (ubuntu-latest, 3.12) / ubuntu-latest, python 3.12	3m 10s
Python (windows-latest, 3.11) / windows-latest, python 3.11	3m 4s
Python (ubuntu-latest, 3.11) / ubuntu-latest, python 3.11	3m 12s
	55m 32s

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