Update dev documentation

docs/__server/server.bundle.js

@@ -96641,26 +96641,39 @@ exports.bgWhiteBright = init(107, 49)
 /***/ 95042:
 /***/ ((module) => {
 
+// This alphabet uses `A-Za-z0-9_-` symbols.
+// The order of characters is optimized for better gzip and brotli compression.
+// References to the same file (works both for gzip and brotli):
+// `'use`, `andom`, and `rict'`
+// References to the brotli default dictionary:
+// `-26T`, `1983`, `40px`, `75px`, `bush`, `jack`, `mind`, `very`, and `wolf`
 let urlAlphabet =
   'useandom-26T198340PX75pxJACKVERYMINDBUSHWOLF_GQZbfghjklqvwyzrict'
+
 let customAlphabet = (alphabet, defaultSize = 21) => {
   return (size = defaultSize) => {
     let id = ''
-    let i = size
+    // A compact alternative for `for (var i = 0; i < step; i++)`.
+    let i = size | 0
     while (i--) {
+      // `| 0` is more compact and faster than `Math.floor()`.
       id += alphabet[(Math.random() * alphabet.length) | 0]
     }
     return id
   }
 }
+
 let nanoid = (size = 21) => {
   let id = ''
-  let i = size
+  // A compact alternative for `for (var i = 0; i < step; i++)`.
+  let i = size | 0
   while (i--) {
+    // `| 0` is more compact and faster than `Math.floor()`.
     id += urlAlphabet[(Math.random() * 64) | 0]
   }
   return id
 }
+
 module.exports = { nanoid, customAlphabet }