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/lib/metadata/constants.js

@@ -0,0 +1,18 @@
+export const ViewportMetaKeys = {
+    width: "width",
+    height: "height",
+    initialScale: "initial-scale",
+    minimumScale: "minimum-scale",
+    maximumScale: "maximum-scale",
+    viewportFit: "viewport-fit",
+    userScalable: "user-scalable",
+    interactiveWidget: "interactive-widget"
+};
+export const IconKeys = [
+    "icon",
+    "shortcut",
+    "apple",
+    "other"
+];
+
+//# sourceMappingURL=constants.js.map