completar/actions.ts:259 writes accessRequests.normalizedEmail = RAW email instead of normalizeEmail(email) — column misleading; surfaced during MARS-532 drift investigation

db-mars-cc found while investigating the normalizedEmail canonical drift (MARS-532): the signed-link completion path completar/actions.ts:259 stores the raw email into accessRequests.normalizedEmail rather than the normalized form. Low pri — the vAccessRequestsForReview view no longer trusts this column (migration 076 derives canonicalizeEmail(ar.email) directly), so it's a data-integrity/consistency fix not a correctness blocker. Align the write to normalizeEmail(email) to match the other 3 email-write sites.