Fixes für input fields, #60 -> AuditService

bizmatch-server/src/drizzle/schema.ts

@@ -135,7 +135,7 @@ export const commercials = pgTable(
 export const listingEvents = pgTable('listing_events', {
   id: uuid('id').primaryKey().defaultRandom().notNull(),
   listingId: uuid('listing_id'), // Assuming listings are referenced by UUID, adjust as necessary
-  userId: uuid('user_id'), // Nullable, if user is logged in, otherwise null
+  email: varchar('email', { length: 255 }).references(() => users.email),
   eventType: varchar('event_type', { length: 50 }), // 'view', 'print', 'email', 'facebook', 'x', 'linkedin', 'contact'
   eventTimestamp: timestamp('event_timestamp').defaultNow(),
   userIp: varchar('user_ip', { length: 45 }), // Optional if you choose to track IP in frontend or backend