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/detect-newline/index.d.ts

@@ -0,0 +1,26 @@
+declare const detectNewline: {
+	/**
+	Detect the dominant newline character of a string.
+
+	@returns The detected newline or `undefined` when no newline character is found.
+
+	@example
+	```
+	import detectNewline = require('detect-newline');
+
+	detectNewline('foo\nbar\nbaz\r\n');
+	//=> '\n'
+	```
+	*/
+	(string: string): '\r\n' | '\n' | undefined;
+
+	/**
+	Detect the dominant newline character of a string.
+
+	@returns The detected newline or `\n` when no newline character is found or the input is not a string.
+	*/
+	graceful(string: string): '\r\n' | '\n';
+	graceful(string?: unknown): '\n';
+};
+
+export = detectNewline;

frontend/node_modules/detect-newline/index.js

@@ -0,0 +1,21 @@
+'use strict';
+
+const detectNewline = string => {
+	if (typeof string !== 'string') {
+		throw new TypeError('Expected a string');
+	}
+
+	const newlines = string.match(/(?:\r?\n)/g) || [];
+
+	if (newlines.length === 0) {
+		return;
+	}
+
+	const crlf = newlines.filter(newline => newline === '\r\n').length;
+	const lf = newlines.length - crlf;
+
+	return crlf > lf ? '\r\n' : '\n';
+};
+
+module.exports = detectNewline;
+module.exports.graceful = string => (typeof string === 'string' && detectNewline(string)) || '\n';

frontend/node_modules/detect-newline/license

@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (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/detect-newline/package.json

@@ -0,0 +1,39 @@
+{
+	"name": "detect-newline",
+	"version": "3.1.0",
+	"description": "Detect the dominant newline character of a string",
+	"license": "MIT",
+	"repository": "sindresorhus/detect-newline",
+	"author": {
+		"name": "Sindre Sorhus",
+		"email": "sindresorhus@gmail.com",
+		"url": "sindresorhus.com"
+	},
+	"engines": {
+		"node": ">=8"
+	},
+	"scripts": {
+		"test": "xo && ava && tsd"
+	},
+	"files": [
+		"index.js",
+		"index.d.ts"
+	],
+	"keywords": [
+		"newline",
+		"linebreak",
+		"line-break",
+		"line",
+		"lf",
+		"crlf",
+		"eol",
+		"linefeed",
+		"character",
+		"char"
+	],
+	"devDependencies": {
+		"ava": "^1.4.1",
+		"tsd": "^0.7.2",
+		"xo": "^0.24.0"
+	}
+}

frontend/node_modules/detect-newline/readme.md

@@ -0,0 +1,42 @@
+# detect-newline [![Build Status](https://travis-ci.org/sindresorhus/detect-newline.svg?branch=master)](https://travis-ci.org/sindresorhus/detect-newline)
+
+> Detect the dominant newline character of a string
+
+
+## Install
+
+```
+$ npm install detect-newline
+```
+
+
+## Usage
+
+```js
+const detectNewline = require('detect-newline');
+
+detectNewline('foo\nbar\nbaz\r\n');
+//=> '\n'
+```
+
+
+## API
+
+### detectNewline(string)
+
+Returns the detected newline or `undefined` when no newline character is found.
+
+### detectNewline.graceful(unknown)
+
+Returns the detected newline or `\n` when no newline character is found or the input is not a string.
+
+
+## Related
+
+- [detect-newline-cli](https://github.com/sindresorhus/detect-newline-cli) - CLI for this module
+- [detect-indent](https://github.com/sindresorhus/detect-indent) - Detect the indentation of code
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)