Confirmed on the local server as the seeded contact: any customer's work order
by id (F13), other customers' service requests (F14), the full customer list
with phones and emails through pick lists (F15), the whole service schedule
(F16). Candidates from code: notification subscriptions for another user (F17),
pick-list search text placed in SQL unescaped (F18). Review only, no code changes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>