.agent/.github: add topology2 agent design guidance #22884

Job	Run time
manifest-check	2m 55s
build-windows (mnfst, tgl)	9m 38s
LP64-WIP	5m 35s
build-windows (mnfst, lnl)	8m 51s
build-windows (mnfst, tgl-h)	8m 3s
build-windows (-d, mnfst, lnl)	9m 39s
build-windows (mnfst, imx8m imx8ulp)	10m 51s
build-linux (mnfst, imx8m imx8ulp)	4m 59s
build-linux (mnfst, lnl)	4m 50s
build-windows (mnfst, mtl)	9m 24s
build-linux (mnfst, ptl)	5m 56s
build-linux (mnfst, tgl-h)	4m 36s
build-windows (mnfst, imx8 imx8x)	10m 52s
build-linux (-d, mnfst, lnl)	4m 49s
build-linux (mnfst, wcl imx95)	7m 23s
build-linux (mnfst, imx8 imx8x)	5m 9s
build-linux (mnfst, mtl)	5m 34s
build-linux (mnfst, tgl)	4m 45s
build-windows (mnfst, ptl)	9m 18s
compare-linux-win	30s
	2h 13m 37s

Provide feedback