init: hgmj server initial commit

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

models/v/systemmod/base.go

@@ -0,0 +1,14 @@
+package systemmod
+
+import (
+	"91jd-server/common/db"
+	"91jd-server/models"
+)
+
+var cdb *db.MongoDB
+
+const cTable = models.SystemConfig
+
+func Init() {
+	configIndex()
+}