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/client/components/request-async-storage.external.js

@@ -0,0 +1,37 @@
+"TURBOPACK { transition: next-shared }";
+"use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+0 && (module.exports = {
+    getExpectedRequestStore: null,
+    requestAsyncStorage: null
+});
+function _export(target, all) {
+    for(var name in all)Object.defineProperty(target, name, {
+        enumerable: true,
+        get: all[name]
+    });
+}
+_export(exports, {
+    getExpectedRequestStore: function() {
+        return getExpectedRequestStore;
+    },
+    requestAsyncStorage: function() {
+        return _requestasyncstorageinstance.requestAsyncStorage;
+    }
+});
+const _requestasyncstorageinstance = require("./request-async-storage-instance");
+function getExpectedRequestStore(callingExpression) {
+    const store = _requestasyncstorageinstance.requestAsyncStorage.getStore();
+    if (store) return store;
+    throw new Error("`" + callingExpression + "` was called outside a request scope. Read more: https://nextjs.org/docs/messages/next-dynamic-api-wrong-context");
+}
+
+if ((typeof exports.default === 'function' || (typeof exports.default === 'object' && exports.default !== null)) && typeof exports.default.__esModule === 'undefined') {
+  Object.defineProperty(exports.default, '__esModule', { value: true });
+  Object.assign(exports.default, exports);
+  module.exports = exports.default;
+}
+
+//# sourceMappingURL=request-async-storage.external.js.map