feat: Improve runtime ternary support

[iwoplaza]

Cases where it can fail currently:

(b > w) ? (b - w) : (w - b)

(r === d.u32(2)) ? RotLut2Gpu.$[bitU] : RotLut3Gpu.$[bitU]

(r === d.u32(1)) ? v1 : ((r === d.u32(2)) ? v2 : v3)

isCustom ? layout.$.customCodewords[customIdx].low : layout.$.codewords[cwIdx].low

isCustom ? customCw.low : stdCw.low

isCustom ? (d.u32(1) << d.u32(20)) : d.u32(0)