Initial commit: TaskPool React panel

- React frontend with route-level code splitting
- Backend rebranded from Baihu to TaskPool
- DB brand migration script and local compatibility

internal/utils/id.go

@@ -0,0 +1,20 @@
+package utils
+
+import (
+	"github.com/rs/xid"
+)
+
+// GenerateID 生成一个新的 ID (使用 xid，20位字符)
+func GenerateID() string {
+	return xid.New().String()
+}
+
+// IsNumeric 检查字符串是否全为数字
+func IsNumeric(s string) bool {
+	for _, c := range s {
+		if c < '0' || c > '9' {
+			return false
+		}
+	}
+	return s != ""
+}