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/esm/client/with-router.js

@@ -0,0 +1,20 @@
+import { jsx as _jsx } from "react/jsx-runtime";
+import React from "react";
+import { useRouter } from "./router";
+export default function withRouter(ComposedComponent) {
+    function WithRouterWrapper(props) {
+        return /*#__PURE__*/ _jsx(ComposedComponent, {
+            router: useRouter(),
+            ...props
+        });
+    }
+    WithRouterWrapper.getInitialProps = ComposedComponent.getInitialProps;
+    WithRouterWrapper.origGetInitialProps = ComposedComponent.origGetInitialProps;
+    if (process.env.NODE_ENV !== "production") {
+        const name = ComposedComponent.displayName || ComposedComponent.name || "Unknown";
+        WithRouterWrapper.displayName = "withRouter(" + name + ")";
+    }
+    return WithRouterWrapper;
+}
+
+//# sourceMappingURL=with-router.js.map