perf(efficient_did): Rust batched-Cholesky ridge solve for conditiona… #2714

Job	Run time
Rust Unit Tests (ubuntu-24.04-arm)	1m 25s
Rust Unit Tests (windows-latest)	1m 57s
Rust Unit Tests (ubuntu-latest)	1m 17s
Python Tests (macos-latest, py3.14)	31m 40s
Pure Python Fallback	1h 14m 6s
Python Tests (macos-latest, py3.13)	34m 38s
Python Tests (windows-latest, py3.13)	59m 43s
Python Tests (ubuntu-24.04-arm, py3.14)	34m 16s
Python Tests (ubuntu-24.04-arm, py3.11)	35m 48s
Python Tests (ubuntu-24.04-arm, py3.13)	33m 22s
Python Tests (windows-latest, py3.11)	54m 26s
Python Tests (windows-latest, py3.14)	1h 0m 28s
Rust Unit Tests (macos-latest)	1m 55s
Python Tests (ubuntu-latest, py3.14)	1h 6m 28s
Python Tests (ubuntu-latest, py3.13)	1h 6m 6s
Python Tests (ubuntu-latest, py3.11)	1h 6m 55s
Python Tests (macos-latest, py3.11)	33m 18s
	10h 57m 48s

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