New BrandingProfile model (migration 0001) with logo upload, color
pickers, font, Word template upload, table style and extra CSS, plus
list/edit/delete views, an HTML preview and a menu entry with add
button. Access is controlled via the model's Django permissions.
Profiles from the database are offered first in the export form (the
default profile preselected); profiles from PLUGINS_CONFIG still work.
Bump version to 0.2.0 - requires "manage.py migrate".
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
