chore: update valuation ledger for 2026-08-20

Cai

2026-08-20 2612bb798dd1b9efe05cb526799c3660435de449

1
{"rc":0,"data":{"code":"001270","name":"铖昌科技","klines":["2026-07-31,92.00,92.56,94.00,91.50,123456,1140000000,0,0,0,0"]}}