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/server/app-render/render-to-string.js

@@ -0,0 +1,22 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+Object.defineProperty(exports, "renderToString", {
+    enumerable: true,
+    get: function() {
+        return renderToString;
+    }
+});
+const _nodewebstreamshelper = require("../stream-utils/node-web-streams-helper");
+const _constants = require("../lib/trace/constants");
+const _tracer = require("../lib/trace/tracer");
+async function renderToString({ ReactDOMServer, element }) {
+    return (0, _tracer.getTracer)().trace(_constants.AppRenderSpan.renderToString, async ()=>{
+        const renderStream = await ReactDOMServer.renderToReadableStream(element);
+        await renderStream.allReady;
+        return (0, _nodewebstreamshelper.streamToString)(renderStream);
+    });
+}
+
+//# sourceMappingURL=render-to-string.js.map