feat: `Option` / `Result` helpers #1962

Job	Run time
Check for changes in Rust files	4s
check	56s
Build benchmarks 🏋️	5m 47s
tests (Rust nightly, coverage)	2m 13s
tests (Rust 1.75)	2m 14s
tests (Rust beta)	2m 1s
tests (Rust stable, all features)	1m 58s
tests (Rust stable, no features)	1m 30s
Check standard extensions	4s
Required checks 🦀	1s
	16m 48s

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