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/webpack/lib/dependencies/LoaderDependency.js

@@ -0,0 +1,41 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const ModuleDependency = require("./ModuleDependency");
+
+/** @typedef {import("../Dependency").GetConditionFn} GetConditionFn */
+/** @typedef {import("../ModuleGraph")} ModuleGraph */
+/** @typedef {import("../ModuleGraphConnection")} ModuleGraphConnection */
+/** @typedef {import("../ModuleGraphConnection").ConnectionState} ConnectionState */
+/** @typedef {import("../util/runtime").RuntimeSpec} RuntimeSpec */
+
+class LoaderDependency extends ModuleDependency {
+	/**
+	 * @param {string} request request string
+	 */
+	constructor(request) {
+		super(request);
+	}
+
+	get type() {
+		return "loader";
+	}
+
+	get category() {
+		return "loader";
+	}
+
+	/**
+	 * @param {ModuleGraph} moduleGraph module graph
+	 * @returns {null | false | GetConditionFn} function to determine if the connection is active
+	 */
+	getCondition(moduleGraph) {
+		return false;
+	}
+}
+
+module.exports = LoaderDependency;