feat(dm): add dashboard with oauth, dice, initiative, open5e, notes

tests/notes.test.ts

@@ -0,0 +1,29 @@
+import { describe, it, expect, beforeEach } from 'vitest';
+import { saveNotes, loadNotes, clearNotes } from '../src/lib/client/notes';
+
+describe('Notes', () => {
+  beforeEach(() => {
+    localStorage.clear();
+  });
+
+  it('saves notes to localStorage', () => {
+    saveNotes('Test note');
+    expect(loadNotes()).toBe('Test note');
+  });
+
+  it('loads empty string when no notes saved', () => {
+    expect(loadNotes()).toBe('');
+  });
+
+  it('clears notes', () => {
+    saveNotes('Test');
+    clearNotes();
+    expect(loadNotes()).toBe('');
+  });
+
+  it('overwrites existing notes', () => {
+    saveNotes('First');
+    saveNotes('Second');
+    expect(loadNotes()).toBe('Second');
+  });
+});