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/remove-base-path.js

@@ -0,0 +1,16 @@
+import { hasBasePath } from "./has-base-path";
+const basePath = process.env.__NEXT_ROUTER_BASEPATH || "";
+export function removeBasePath(path) {
+    if (process.env.__NEXT_MANUAL_CLIENT_BASE_PATH) {
+        if (!hasBasePath(path)) {
+            return path;
+        }
+    }
+    // Can't trim the basePath if it has zero length!
+    if (basePath.length === 0) return path;
+    path = path.slice(basePath.length);
+    if (!path.startsWith("/")) path = "/" + path;
+    return path;
+}
+
+//# sourceMappingURL=remove-base-path.js.map