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/import-local/fixtures/cli.js

@@ -0,0 +1,7 @@
+#!/usr/bin/env node
+'use strict';
+const importLocal = require('..');
+
+if (importLocal(__filename)) {
+	console.log('local');
+}

frontend/node_modules/import-local/index.d.ts

@@ -0,0 +1,17 @@
+/**
+Let a globally installed package use a locally installed version of itself if available.
+
+@param filePath - The absolute file path to the main file of the package.
+
+@example
+```
+import importLocal from 'import-local';
+
+if (importLocal(import.meta.url)) {
+	console.log('Using local version of this package');
+} else {
+	// Code for both global and local version here…
+}
+```
+*/
+export default function importLocal(filePath: string): boolean | undefined | unknown;

frontend/node_modules/import-local/index.js

@@ -0,0 +1,24 @@
+'use strict';
+const path = require('path');
+const {fileURLToPath} = require('url');
+const resolveCwd = require('resolve-cwd');
+const pkgDir = require('pkg-dir');
+
+module.exports = filename => {
+	const normalizedFilename = filename.startsWith('file://') ? fileURLToPath(filename) : filename;
+	const globalDir = pkgDir.sync(path.dirname(normalizedFilename));
+	const relativePath = path.relative(globalDir, normalizedFilename);
+	const pkg = require(path.join(globalDir, 'package.json'));
+	const localFile = resolveCwd.silent(path.join(pkg.name, relativePath));
+	const localNodeModules = path.join(process.cwd(), 'node_modules');
+
+	const filenameInLocalNodeModules = !path.relative(localNodeModules, normalizedFilename).startsWith('..') &&
+		// On Windows, if `localNodeModules` and `normalizedFilename` are on different partitions, `path.relative()` returns the value of `normalizedFilename`, resulting in `filenameInLocalNodeModules` incorrectly becoming `true`.
+		path.parse(localNodeModules).root === path.parse(normalizedFilename).root;
+
+	// Use `path.relative()` to detect local package installation,
+	// because __filename's case is inconsistent on Windows
+	// Can use `===` when targeting Node.js 8
+	// See https://github.com/nodejs/node/issues/6624
+	return !filenameInLocalNodeModules && localFile && path.relative(localFile, normalizedFilename) !== '' && require(localFile);
+};

frontend/node_modules/import-local/license

@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (https://sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

frontend/node_modules/import-local/package.json

@@ -0,0 +1,54 @@
+{
+	"name": "import-local",
+	"version": "3.2.0",
+	"description": "Let a globally installed package use a locally installed version of itself if available",
+	"license": "MIT",
+	"repository": "sindresorhus/import-local",
+	"funding": "https://github.com/sponsors/sindresorhus",
+	"author": {
+		"name": "Sindre Sorhus",
+		"email": "sindresorhus@gmail.com",
+		"url": "https://sindresorhus.com"
+	},
+	"bin": {
+		"import-local-fixture": "fixtures/cli.js"
+	},
+	"sideEffects": false,
+	"engines": {
+		"node": ">=8"
+	},
+	"scripts": {
+		"test": "xo && ava"
+	},
+	"files": [
+		"index.js",
+		"index.d.ts",
+		"fixtures/cli.js"
+	],
+	"keywords": [
+		"import",
+		"local",
+		"require",
+		"resolve",
+		"global",
+		"version",
+		"prefer",
+		"cli"
+	],
+	"dependencies": {
+		"pkg-dir": "^4.2.0",
+		"resolve-cwd": "^3.0.0"
+	},
+	"devDependencies": {
+		"ava": "2.1.0",
+		"cpy": "^7.0.1",
+		"del": "^4.1.1",
+		"execa": "^2.0.1",
+		"xo": "^0.24.0"
+	},
+	"xo": {
+		"ignores": [
+			"fixtures"
+		]
+	}
+}

frontend/node_modules/import-local/readme.md

@@ -0,0 +1,25 @@
+# import-local
+
+> Let a globally installed package use a locally installed version of itself if available
+
+Useful for CLI tools that want to defer to the user's locally installed version when available, but still work if it's not installed locally. For example, [AVA](https://avajs.dev) and [XO](https://github.com/xojs/xo) uses this method.
+
+## Install
+
+```sh
+npm install import-local
+```
+
+## Usage
+
+```js
+import importLocal from 'import-local';
+
+if (importLocal(import.meta.url)) {
+	console.log('Using local version of this package');
+} else {
+	// Code for both global and local version here…
+}
+```
+
+You can also pass in `__filename` when used in a CommonJS context.