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/ts-jest/dist/transformers/hoist-jest.d.ts

@@ -0,0 +1,9 @@
+import type _ts from 'typescript';
+import type { TsCompilerInstance } from '../types';
+/**
+ * Remember to increase the version whenever transformer's content is changed. This is to inform Jest to not reuse
+ * the previous cache which contains old transformer's content
+ */
+export declare const version = 4;
+export declare const name = "hoist-jest";
+export declare function factory({ configSet }: TsCompilerInstance): (ctx: _ts.TransformationContext) => _ts.Transformer<_ts.SourceFile>;