Categories move from a hard-coded list to a feedback_categories table
(migration 0062), seeded with the four existing keys, labels and
descriptions so production feedback is untouched; any other key already in
use gets an archived category. Keys are fixed, so renames relabel past
feedback. Archive hides a category from the form; only unused categories
can be deleted. Submissions are validated against active categories, and
feedback responses carry category_label.
New: GET /feedback/categories (public); /admin/feedback/categories CRUD +
reorder behind the new feedback:categories permission (granted to Admin).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
