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/convenience/click.js

@@ -0,0 +1,35 @@
+'use strict';
+
+async function click(element) {
+    const pointerIn = [];
+    if (!this.config.skipHover) {
+        pointerIn.push({
+            target: element
+        });
+    }
+    pointerIn.push({
+        keys: '[MouseLeft]',
+        target: element
+    });
+    return this.pointer(pointerIn);
+}
+async function dblClick(element) {
+    return this.pointer([
+        {
+            target: element
+        },
+        '[MouseLeft][MouseLeft]'
+    ]);
+}
+async function tripleClick(element) {
+    return this.pointer([
+        {
+            target: element
+        },
+        '[MouseLeft][MouseLeft][MouseLeft]'
+    ]);
+}
+
+exports.click = click;
+exports.dblClick = dblClick;
+exports.tripleClick = tripleClick;

frontend/node_modules/@testing-library/user-event/dist/cjs/convenience/hover.js

@@ -0,0 +1,19 @@
+'use strict';
+
+require('../utils/dataTransfer/Clipboard.js');
+var cssPointerEvents = require('../utils/pointer/cssPointerEvents.js');
+
+async function hover(element) {
+    return this.pointer({
+        target: element
+    });
+}
+async function unhover(element) {
+    cssPointerEvents.assertPointerEvents(this, this.system.pointer.getMouseTarget(this));
+    return this.pointer({
+        target: element.ownerDocument.body
+    });
+}
+
+exports.hover = hover;
+exports.unhover = unhover;

frontend/node_modules/@testing-library/user-event/dist/cjs/convenience/index.js

@@ -0,0 +1,14 @@
+'use strict';
+
+var click = require('./click.js');
+var hover = require('./hover.js');
+var tab = require('./tab.js');
+
+
+
+exports.click = click.click;
+exports.dblClick = click.dblClick;
+exports.tripleClick = click.tripleClick;
+exports.hover = hover.hover;
+exports.unhover = hover.unhover;
+exports.tab = tab.tab;

frontend/node_modules/@testing-library/user-event/dist/cjs/convenience/tab.js

@@ -0,0 +1,7 @@
+'use strict';
+
+async function tab({ shift } = {}) {
+    return this.keyboard(shift === true ? '{Shift>}{Tab}{/Shift}' : shift === false ? '[/ShiftLeft][/ShiftRight]{Tab}' : '{Tab}');
+}
+
+exports.tab = tab;