feat: optionally unblinded advice columns #755

Job	Run time
Intra-doc links	5m 10s
Bitrot check	8m 47s
Build target wasm32-unknown-unknown	5m 49s
Rustfmt	19s
Build target wasm32-wasi	5m 37s
Test on ubuntu-latest with basic features	14m 31s
Test on windows-latest with basic features	17m 5s
Test on macOS-latest with basic features	13m 32s
Test on ubuntu-latest with all features	21m 1s
Test on windows-latest with all features	23m 41s
Test on macOS-latest with all features	18m 57s
	2h 14m 29s

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