[Quantization][w8a8_int8] Fix weight loading issue for w8a8_int8 path with "ignore" layer list in quantization config#7820

ch-wan merged 16 commits intosgl-project:mainsgl-project/sglang:mainfrom

jianan-gu:add_int8_load_optionjianan-gu/sglang:add_int8_load_optionCopy head branch name to clipboard