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/build/webpack/plugins/flight-manifest-plugin.d.ts

@@ -0,0 +1,64 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+import { webpack } from 'next/dist/compiled/webpack/webpack';
+interface Options {
+    dev: boolean;
+    appDir: string;
+}
+/**
+ * Webpack module id
+ */
+type ModuleId = string | number;
+export type ManifestChunks = Array<string>;
+export interface ManifestNode {
+    [moduleExport: string]: {
+        /**
+         * Webpack module id
+         */
+        id: ModuleId;
+        /**
+         * Export name
+         */
+        name: string;
+        /**
+         * Chunks for the module. JS and CSS.
+         */
+        chunks: ManifestChunks;
+        /**
+         * If chunk contains async module
+         */
+        async?: boolean;
+    };
+}
+export type ClientReferenceManifest = {
+    moduleLoading: {
+        prefix: string;
+        crossOrigin: string | null;
+    };
+    clientModules: ManifestNode;
+    ssrModuleMapping: {
+        [moduleId: string]: ManifestNode;
+    };
+    edgeSSRModuleMapping: {
+        [moduleId: string]: ManifestNode;
+    };
+    entryCSSFiles: {
+        [entry: string]: string[];
+    };
+    entryJSFiles?: {
+        [entry: string]: string[];
+    };
+};
+export declare class ClientReferenceManifestPlugin {
+    dev: Options['dev'];
+    appDir: Options['appDir'];
+    appDirBase: string;
+    constructor(options: Options);
+    apply(compiler: webpack.Compiler): void;
+    createAsset(assets: webpack.Compilation['assets'], compilation: webpack.Compilation, context: string): void;
+}
+export {};