feat(pillar): substrate-tier Pillars 12-17 + design charter #419

Job	Run time
hpc-stream-parallel/rayon	1m 18s
clippy/1.95.0	44s
nostd/thumbv6m-none-eabi/stable	29s
format/stable	20s
native-backend/stable	7m 44s
Pass MSRV values to other jobs	3s
tier4-avx512-check	28s
miri	0s
cross_test/${{ matrix.target }}/${{ matrix.rust }}	-1s
cargo-careful	-1s
docs/nightly	-1s
nightly-simd-polyfill	-1s
tests/stable	10m 37s
tests/beta	9m 13s
tests/1.95.0	11m 10s
blas-msrv	53s
conclusion	0s
	42m 55s

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