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/babel-plugin-jest-hoist/README.md

@@ -0,0 +1,33 @@
+# babel-plugin-jest-hoist
+
+Babel plugin to hoist `jest.disableAutomock`, `jest.enableAutomock`, `jest.unmock`, `jest.mock`, calls above `import` statements. This plugin is automatically included when using [babel-jest](https://github.com/jestjs/jest/tree/main/packages/babel-jest).
+
+## Installation
+
+```sh
+$ yarn add --dev babel-plugin-jest-hoist
+```
+
+## Usage
+
+### Via `babel.config.js` (Recommended)
+
+```js
+module.exports = {
+  plugins: ['jest-hoist'],
+};
+```
+
+### Via CLI
+
+```sh
+$ babel --plugins jest-hoist script.js
+```
+
+### Via Node API
+
+```javascript
+require('@babel/core').transform('code', {
+  plugins: ['jest-hoist'],
+});
+```