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/turborepo-access-trace/helpers.d.ts

@@ -0,0 +1,20 @@
+import { TurborepoAccessTraceResult } from './result';
+/**
+ * Trace access to the filesystem (TODO), environment variables, and TCP addresses and
+ * merge the results into the parent `TurborepoAccessTraceResult`.
+ *
+ * @param f the function to trace
+ * @param parent the `TurborepoAccessTraceResult` to merge the results into
+ * @returns the result of the function
+ */
+export declare function turborepoTraceAccess<T>(f: () => T | Promise<T>, parent: TurborepoAccessTraceResult): Promise<T> | T;
+/**
+ * Write the access trace to the trace file.
+ *
+ * @param distDir the directory to write the trace file to
+ * @param traces an array of traces to merge and write to the trace file
+ */
+export declare function writeTurborepoAccessTraceResult({ distDir, traces, }: {
+    distDir: string;
+    traces: Array<TurborepoAccessTraceResult>;
+}): Promise<void>;