feat: add the cat command

src/main/kotlin/cn/rtast/fancybot/util/URI.kt

@@ -0,0 +1,19 @@
+/*
+ * Copyright © 2024 RTAkland
+ * Author: RTAkland
+ * Date: 2024/10/8
+ */
+
+
+package cn.rtast.fancybot.util
+
+import java.net.URI
+import java.net.URL
+
+fun String.toURL(): URL {
+    return URI(this).toURL()
+}
+
+fun String.toURI(): URI {
+    return URI(this)
+}

src/main/kotlin/cn/rtast/fancybot/util/str/StringFormatter.kt

@@ -45,4 +45,8 @@ fun Int.formatToMinutes(): String {
     val minutes = this / 60
     val remainingSeconds = this % 60
     return "$minutes:${if (remainingSeconds < 10) "0" else ""}$remainingSeconds"
+}
+
+fun String.proxy(): String {
+    return this.replace("https://", "https://proxy.rtast.cn/https/")
 }