新增玻璃期货日线数据拉取功能

- 通过 Tushare HTTP API 获取活跃合约列表和日线行情
- 数据按品种分文件夹存储为 CSV
- 添加 README 项目说明和字段文档
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

data/FG/FG2706.csv

@@ -0,0 +1,25 @@
+ts_code,trade_date,pre_close,pre_settle,open,high,low,close,settle,change1,change2,vol,amount,oi,oi_chg,delv_settle
+FG2706.ZCE,20260615,,1154.0,1169.0,1203.0,1165.0,1200.0,1193.0,46.0,39.0,680.0,1622.35,512.0,,
+FG2706.ZCE,20260616,1200.0,1193.0,1195.0,1205.0,1187.0,1191.0,1194.0,-2.0,1.0,567.0,1354.43,610.0,98.0,
+FG2706.ZCE,20260617,1191.0,1194.0,1189.0,1199.0,1183.0,1183.0,1191.0,-11.0,-3.0,370.0,881.14,772.0,162.0,
+FG2706.ZCE,20260618,1183.0,1191.0,1182.0,1183.0,1167.0,1169.0,1176.0,-22.0,-15.0,828.0,1946.89,1032.0,260.0,
+FG2706.ZCE,20260622,1169.0,1176.0,1172.0,1173.0,1165.0,1168.0,1168.0,-8.0,-8.0,523.0,1221.46,1290.0,258.0,
+FG2706.ZCE,20260623,1168.0,1168.0,1166.0,1166.0,1156.0,1159.0,1160.0,-9.0,-8.0,562.0,1304.14,1407.0,117.0,
+FG2706.ZCE,20260624,1159.0,1160.0,1159.0,1173.0,1156.0,1161.0,1163.0,1.0,3.0,655.0,1523.68,1672.0,265.0,
+FG2706.ZCE,20260625,1161.0,1163.0,1163.0,1168.0,1158.0,1161.0,1164.0,-2.0,1.0,583.0,1356.69,1828.0,156.0,
+FG2706.ZCE,20260626,1161.0,1164.0,1160.0,1164.0,1150.0,1155.0,1158.0,-9.0,-6.0,482.0,1115.89,1802.0,-26.0,
+FG2706.ZCE,20260629,1155.0,1158.0,1157.0,1162.0,1154.0,1162.0,1159.0,4.0,1.0,621.0,1439.08,1890.0,88.0,
+FG2706.ZCE,20260630,1162.0,1159.0,1162.0,1163.0,1154.0,1157.0,1157.0,-2.0,-2.0,489.0,1131.32,1900.0,10.0,
+FG2706.ZCE,20260701,1157.0,1157.0,1157.0,1157.0,1148.0,1152.0,1152.0,-5.0,-5.0,685.0,1578.73,2058.0,158.0,
+FG2706.ZCE,20260702,1152.0,1152.0,1151.0,1155.0,1148.0,1151.0,1150.0,-1.0,-2.0,814.0,1872.76,2228.0,170.0,
+FG2706.ZCE,20260703,1151.0,1150.0,1152.0,1164.0,1150.0,1160.0,1157.0,10.0,7.0,900.0,2083.48,2339.0,111.0,
+FG2706.ZCE,20260706,1160.0,1157.0,1163.0,1167.0,1155.0,1156.0,1162.0,-1.0,5.0,709.0,1648.22,2281.0,-58.0,
+FG2706.ZCE,20260707,1156.0,1162.0,1155.0,1155.0,1143.0,1143.0,1148.0,-19.0,-14.0,862.0,1978.72,2411.0,130.0,
+FG2706.ZCE,20260708,1143.0,1148.0,1141.0,1149.0,1138.0,1147.0,1144.0,-1.0,-4.0,788.0,1803.32,2413.0,2.0,
+FG2706.ZCE,20260709,1147.0,1144.0,1147.0,1147.0,1138.0,1140.0,1141.0,-4.0,-3.0,743.0,1695.53,2463.0,50.0,
+FG2706.ZCE,20260710,1140.0,1141.0,1141.0,1151.0,1139.0,1143.0,1145.0,2.0,4.0,693.0,1587.27,2564.0,101.0,
+FG2706.ZCE,20260713,1143.0,1145.0,1145.0,1145.0,1131.0,1131.0,1141.0,-14.0,-4.0,1814.0,4140.05,3079.0,515.0,
+FG2706.ZCE,20260714,1131.0,1141.0,1133.0,1135.0,1128.0,1133.0,1132.0,-8.0,-9.0,684.0,1548.91,3329.0,250.0,
+FG2706.ZCE,20260715,1133.0,1132.0,1132.0,1134.0,1125.0,1125.0,1129.0,-7.0,-3.0,809.0,1826.94,3384.0,55.0,
+FG2706.ZCE,20260716,1125.0,1129.0,1127.0,1128.0,1110.0,1112.0,1117.0,-17.0,-12.0,1377.0,3077.05,3519.0,135.0,
+FG2706.ZCE,20260717,1112.0,1117.0,1110.0,1111.0,1083.0,1083.0,1101.0,-34.0,-16.0,2235.0,4919.6,3895.0,376.0,