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/sucrase/dist/util/getIdentifierNames.js

@@ -0,0 +1,15 @@
+"use strict";Object.defineProperty(exports, "__esModule", {value: true});
+var _types = require('../parser/tokenizer/types');
+
+/**
+ * Get all identifier names in the code, in order, including duplicates.
+ */
+ function getIdentifierNames(code, tokens) {
+  const names = [];
+  for (const token of tokens) {
+    if (token.type === _types.TokenType.name) {
+      names.push(code.slice(token.start, token.end));
+    }
+  }
+  return names;
+} exports.default = getIdentifierNames;