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/@testing-library/user-event/dist/cjs/pointer/parseKeyDef.js

@@ -0,0 +1,23 @@
+'use strict';
+
+require('../utils/dataTransfer/Clipboard.js');
+var readNextDescriptor = require('../utils/keyDef/readNextDescriptor.js');
+
+function parseKeyDef(pointerMap, keys) {
+    const defs = [];
+    do {
+        const { descriptor, consumedLength, releasePrevious, releaseSelf = true } = readNextDescriptor.readNextDescriptor(keys, 'pointer');
+        const keyDef = pointerMap.find((p)=>p.name === descriptor);
+        if (keyDef) {
+            defs.push({
+                keyDef,
+                releasePrevious,
+                releaseSelf
+            });
+        }
+        keys = keys.slice(consumedLength);
+    }while (keys)
+    return defs;
+}
+
+exports.parseKeyDef = parseKeyDef;