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/helpers/get-npx-command.js

@@ -0,0 +1,19 @@
+import { execSync } from "child_process";
+import { getPkgManager } from "./get-pkg-manager";
+export function getNpxCommand(baseDir) {
+    const pkgManager = getPkgManager(baseDir);
+    let command = "npx";
+    if (pkgManager === "pnpm") {
+        command = "pnpm dlx";
+    } else if (pkgManager === "yarn") {
+        try {
+            execSync("yarn dlx --help", {
+                stdio: "ignore"
+            });
+            command = "yarn dlx";
+        } catch  {}
+    }
+    return command;
+}
+
+//# sourceMappingURL=get-npx-command.js.map