chore(qdreader): document task matrix and compat

plugins/qdreader/qdreader_sign_autman.js

@@ -4,7 +4,7 @@
 //[author: Hermes]
 //[service: BOSS]
 //[class: 工具类]
-//[version: 2.10.2]
+//[version: 2.10.3]
 //[platform: web,qq,wx,tg,tb,fs,we]
 //[public: false]
 //[price: 0]
@@ -605,9 +605,11 @@ function taskFinished(task) { return Number(field(task, ["IsFinished", "Finished
 function makeBase62Token(num) {
     var alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
     var n = BigInt(num)
-    if (n === BigInt(0)) return "0"
+    var zero = BigInt(0)
+    var base = BigInt(62)
+    if (n === zero) return "0"
     var out = ""
-    while (n > 0n) { out = alphabet[Number(n % 62n)] + out; n = n / 62n }
+    while (n > zero) { out = alphabet[Number(n % base)] + out; n = n / base }
     return out
 }
 function doReceiveGifts(cookie) {