Marks all 8 P0 items resolved (7 fixed, 1 corrected as a false
positive from the original text-only audit method). Adds a fix log
(section 6) with commit references, notes the pre-existing build-
budget failure this pass had to unblock, and corrects the P0-4/P0-5
root-cause description now that the storefront's product data is
known to be live backend data (novo.market proxy), not a local mock
fixture.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>