Add side panels, task selection, graph animation, and project docs

- Foldable left panel (user profile) and right panel (task details)
- Clicking a task in the list or graph node selects it and shows details
- Both views (task list + graph) always mounted via absolute inset-0 for
  correct canvas dimensions; tabs toggle visibility with opacity
- Graph node selection animation: other nodes repel outward (charge -600),
  then selected node smoothly slides to center (500ms cubic ease-out),
  then charge restores to -120 and graph stabilizes
- Graph re-fits on tab switch and panel resize via ResizeObserver
- Fix UUID string IDs throughout (backend returns UUIDs, not integers)
- Add TaskDetailPanel, UserPanel components
- Add CLAUDE.md project documentation

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/node_modules/next/dist/pages/_app.js

@@ -0,0 +1,42 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+Object.defineProperty(exports, "default", {
+    enumerable: true,
+    get: function() {
+        return App;
+    }
+});
+const _interop_require_default = require("@swc/helpers/_/_interop_require_default");
+const _jsxruntime = require("react/jsx-runtime");
+const _react = /*#__PURE__*/ _interop_require_default._(require("react"));
+const _utils = require("../shared/lib/utils");
+/**
+ * `App` component is used for initialize of pages. It allows for overwriting and full control of the `page` initialization.
+ * This allows for keeping state between navigation, custom error handling, injecting additional data.
+ */ async function appGetInitialProps(param) {
+    let { Component, ctx } = param;
+    const pageProps = await (0, _utils.loadGetInitialProps)(Component, ctx);
+    return {
+        pageProps
+    };
+}
+class App extends _react.default.Component {
+    render() {
+        const { Component, pageProps } = this.props;
+        return /*#__PURE__*/ (0, _jsxruntime.jsx)(Component, {
+            ...pageProps
+        });
+    }
+}
+App.origGetInitialProps = appGetInitialProps;
+App.getInitialProps = appGetInitialProps;
+
+if ((typeof exports.default === 'function' || (typeof exports.default === 'object' && exports.default !== null)) && typeof exports.default.__esModule === 'undefined') {
+  Object.defineProperty(exports.default, '__esModule', { value: true });
+  Object.assign(exports.default, exports);
+  module.exports = exports.default;
+}
+
+//# sourceMappingURL=_app.js.map