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/server/lib/cpu-profile.js

@@ -0,0 +1,27 @@
+const privateCpuProfileName = process.env.__NEXT_PRIVATE_CPU_PROFILE;
+const isCpuProfileEnabled = process.env.NEXT_CPU_PROF || privateCpuProfileName;
+if (isCpuProfileEnabled) {
+    const { Session } = require("inspector");
+    const fs = require("fs");
+    const session = new Session();
+    session.connect();
+    session.post("Profiler.enable");
+    session.post("Profiler.start");
+    function saveProfile() {
+        session.post("Profiler.stop", (error, param)=>{
+            if (error) {
+                console.error("Cannot generate CPU profiling:", error);
+                return;
+            }
+            // Write profile to disk
+            const filename = `${privateCpuProfileName || "CPU.main"}.${Date.now()}.cpuprofile`;
+            fs.writeFileSync(`./${filename}`, JSON.stringify(param.profile));
+            process.exit(0);
+        });
+    }
+    process.on("SIGINT", saveProfile);
+    process.on("SIGTERM", saveProfile);
+    process.on("exit", saveProfile);
+}
+
+//# sourceMappingURL=cpu-profile.js.map