docs(11-06): write Phase 11 bundle final summary — baseline vs final comparison
Baseline: 264.63 kB main / 89.34 kB gzip / 15 JS chunks
Final: 183.62 kB main / 64.83 kB gzip / 21 JS chunks
Delta: -81.01 kB raw (-30.6%), -24.51 kB gzip (-27.4%), +6 new lazy chunks
Documents the 5 new lazy route chunks from Plan 11-02 (SettingsView,
TopicsView, DocumentView, CloudStorageView, CloudFolderView), CSS growth
from new responsive Tailwind classes, and the intentional synchronous
FileManagerView decision (D-10, critical first authenticated surface).