Internalize env_value_mode (cross-SDK parity) #83

Job	Run time
Rust SDK Bundled CLI Build (macos-latest)	3m 13s
Rust SDK Bundled CLI Build (ubuntu-latest)	3m 20s
Rust SDK Tests (windows-latest)	3m 25s
Rust SDK Tests (macos-latest)	1m 48s
Rust SDK Bundled CLI Build (windows-latest)	3m 15s
Rust SDK Tests (ubuntu-latest)	2m 8s
	17m 9s

Provide feedback