Produce four 32-bit entropy words for an unseeded generator. Prefers
crypto.getRandomValues; falls back to Date.now() mixed with Math.random
when Web Crypto is unavailable.
Returns [number,number,number,number]
Four non-zero entropy words.
Remarks
The fallback is best-effort, non-reproducible entropy — it is never a
play-path seed (production seeds the sohl.random singleton from this
once, and never accepts a caller-supplied fixed seed through a play path).
Produce four 32-bit entropy words for an unseeded generator. Prefers
crypto.getRandomValues; falls back toDate.now()mixed withMath.randomwhen Web Crypto is unavailable.