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/eslint/conf/default-cli-options.js

@@ -0,0 +1,32 @@
+/**
+ * @fileoverview Default CLIEngineOptions.
+ * @author Ian VanSchooten
+ */
+
+"use strict";
+
+module.exports = {
+    configFile: null,
+    baseConfig: false,
+    rulePaths: [],
+    useEslintrc: true,
+    envs: [],
+    globals: [],
+    extensions: null,
+    ignore: true,
+    ignorePath: void 0,
+    cache: false,
+
+    /*
+     * in order to honor the cacheFile option if specified
+     * this option should not have a default value otherwise
+     * it will always be used
+     */
+    cacheLocation: "",
+    cacheFile: ".eslintcache",
+    cacheStrategy: "metadata",
+    fix: false,
+    allowInlineConfig: true,
+    reportUnusedDisableDirectives: void 0,
+    globInputPaths: true
+};