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/lib/memory/gc-observer.js

@@ -0,0 +1,53 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+0 && (module.exports = {
+    getGcEvents: null,
+    startObservingGc: null,
+    stopObservingGc: null
+});
+function _export(target, all) {
+    for(var name in all)Object.defineProperty(target, name, {
+        enumerable: true,
+        get: all[name]
+    });
+}
+_export(exports, {
+    getGcEvents: function() {
+        return getGcEvents;
+    },
+    startObservingGc: function() {
+        return startObservingGc;
+    },
+    stopObservingGc: function() {
+        return stopObservingGc;
+    }
+});
+const _perf_hooks = require("perf_hooks");
+const _log = require("../../build/output/log");
+const _picocolors = require("../picocolors");
+const LONG_RUNNING_GC_THRESHOLD_MS = 15;
+const gcEvents = [];
+const obs = new _perf_hooks.PerformanceObserver((list)=>{
+    const entry = list.getEntries()[0];
+    gcEvents.push(entry);
+    if (entry.duration > LONG_RUNNING_GC_THRESHOLD_MS) {
+        (0, _log.warn)((0, _picocolors.bold)(`Long running GC detected: ${entry.duration.toFixed(2)}ms`));
+    }
+});
+function startObservingGc() {
+    obs.observe({
+        entryTypes: [
+            "gc"
+        ]
+    });
+}
+function stopObservingGc() {
+    obs.disconnect();
+}
+function getGcEvents() {
+    return gcEvents;
+}
+
+//# sourceMappingURL=gc-observer.js.map