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/next-dev.js

@@ -0,0 +1,36 @@
+// TODO: Remove use of `any` type.
+"use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+const _interop_require_default = require("@swc/helpers/_/_interop_require_default");
+require("./webpack");
+const _ = require("./");
+const _hotmiddlewareclient = /*#__PURE__*/ _interop_require_default._(require("./dev/hot-middleware-client"));
+const _pagebootstrap = require("./page-bootstrap");
+require("./setup-hydration-warning");
+window.next = {
+    version: _.version,
+    // router is initialized later so it has to be live-binded
+    get router () {
+        return _.router;
+    },
+    emitter: _.emitter
+};
+const devClient = (0, _hotmiddlewareclient.default)("webpack");
+(0, _.initialize)({
+    devClient
+}).then((param)=>{
+    let { assetPrefix } = param;
+    return (0, _pagebootstrap.pageBootrap)(assetPrefix);
+}).catch((err)=>{
+    console.error("Error was not caught", err);
+});
+
+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=next-dev.js.map