chore: use local image file instaed of api

src/main/kotlin/cn/rtast/fancybot/commands/lookup/HTTPCatCommand.kt

@@ -10,7 +10,6 @@ package cn.rtast.fancybot.commands.lookup
 import cn.rtast.fancybot.annotations.CommandDescription
 import cn.rtast.fancybot.enums.HttpStatusCode
 import cn.rtast.fancybot.util.misc.Resources
-import cn.rtast.fancybot.util.misc.toURL
 import cn.rtast.fancybot.util.str.encodeToBase64
 import cn.rtast.rob.entity.GroupMessage
 import cn.rtast.rob.util.BaseCommand
@@ -21,18 +20,15 @@ import cn.rtast.rob.util.ob.OneBotListener
 class HTTPCatCommand : BaseCommand() {
     override val commandNames = listOf("http猫猫", "HTTP猫猫")
 
-    companion object {
-        private const val HTTP_CAT_API = "https://http.cat/###.jpg"
-        private val notFoundCatBase64 = Resources.loadFromResourcesAsBytes("httpcat/404.png")!!.encodeToBase64()
+    private val notFoundCatBase64 = Resources.loadFromResourcesAsBytes("httpcat/0.jpg")!!.encodeToBase64()
+
+    private fun loadHTTPCat(code: String): String {
+        return Resources.loadFromResourcesAsBytes("httpcat/${code}.jpg")?.encodeToBase64() ?: notFoundCatBase64
     }
 
     override suspend fun executeGroup(listener: OneBotListener, message: GroupMessage, args: List<String>) {
-        val image = try {
         val statusCode = if (args.isEmpty()) HttpStatusCode.entries.random().code.toString() else args.first()
-            HTTP_CAT_API.replace("###", statusCode).toURL().readBytes().encodeToBase64()
-        } catch (_: Exception) {
-            notFoundCatBase64
-        }
+        val image = loadHTTPCat(statusCode)
         val msg = MessageChain.Builder().addImage(image, true).build()
         message.reply(msg)
     }