Portal: move Schedule to per-License-Key with daily/weekly and Block.day

Adds Schedule.licenseKeyId (unique, nullable) and Schedule.type, makes the
legacy userId optional/non-unique, adds Block.day and flips Block
dynamicAudio default to true. The migration backfills each existing
per-user schedule onto that account's oldest License Key as a daily
schedule, preserves unmappable schedules (licenseKeyId NULL) with a
NOTICE, and is reversible. Tested up/down against a scratch schema.

src/lib/generated/prisma/internal/prismaNamespace.ts

@@ -2069,7 +2069,9 @@ export type AuditLogScalarFieldEnum = (typeof AuditLogScalarFieldEnum)[keyof typ
 
 export const ScheduleScalarFieldEnum = {
   id: 'id',
+  licenseKeyId: 'licenseKeyId',
   userId: 'userId',
+  type: 'type',
   createdAt: 'createdAt',
   updatedAt: 'updatedAt'
 } as const
@@ -2080,6 +2082,7 @@ export type ScheduleScalarFieldEnum = (typeof ScheduleScalarFieldEnum)[keyof typ
 export const BlockScalarFieldEnum = {
   id: 'id',
   scheduleId: 'scheduleId',
+  day: 'day',
   startMinutes: 'startMinutes',
   endMinutes: 'endMinutes',
   dynamicAudio: 'dynamicAudio',