Initial commit: Developer Tools MVP with visual editor

- Complete React app with 7 developer tools
- JSON Tool with visual structured editor
- Serialize Tool with visual structured editor
- URL, Base64, CSV/JSON, Beautifier, Diff tools
- Responsive navigation with dropdown menu
- Dark/light mode toggle
- Mobile-responsive design with sticky header
- All tools working with copy/paste functionality

node_modules/@webassemblyjs/ieee754/lib/index.js

@@ -0,0 +1,52 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.encodeF32 = encodeF32;
+exports.encodeF64 = encodeF64;
+exports.decodeF32 = decodeF32;
+exports.decodeF64 = decodeF64;
+exports.DOUBLE_PRECISION_MANTISSA = exports.SINGLE_PRECISION_MANTISSA = exports.NUMBER_OF_BYTE_F64 = exports.NUMBER_OF_BYTE_F32 = void 0;
+
+var _ieee = require("@xtuc/ieee754");
+
+/**
+ * According to https://webassembly.github.io/spec/binary/values.html#binary-float
+ * n = 32/8
+ */
+var NUMBER_OF_BYTE_F32 = 4;
+/**
+ * According to https://webassembly.github.io/spec/binary/values.html#binary-float
+ * n = 64/8
+ */
+
+exports.NUMBER_OF_BYTE_F32 = NUMBER_OF_BYTE_F32;
+var NUMBER_OF_BYTE_F64 = 8;
+exports.NUMBER_OF_BYTE_F64 = NUMBER_OF_BYTE_F64;
+var SINGLE_PRECISION_MANTISSA = 23;
+exports.SINGLE_PRECISION_MANTISSA = SINGLE_PRECISION_MANTISSA;
+var DOUBLE_PRECISION_MANTISSA = 52;
+exports.DOUBLE_PRECISION_MANTISSA = DOUBLE_PRECISION_MANTISSA;
+
+function encodeF32(v) {
+  var buffer = [];
+  (0, _ieee.write)(buffer, v, 0, true, SINGLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F32);
+  return buffer;
+}
+
+function encodeF64(v) {
+  var buffer = [];
+  (0, _ieee.write)(buffer, v, 0, true, DOUBLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F64);
+  return buffer;
+}
+
+function decodeF32(bytes) {
+  var buffer = new Uint8Array(bytes);
+  return (0, _ieee.read)(buffer, 0, true, SINGLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F32);
+}
+
+function decodeF64(bytes) {
+  var buffer = new Uint8Array(bytes);
+  return (0, _ieee.read)(buffer, 0, true, DOUBLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F64);
+}