add mailboxDomain field to apps table

migrations/schema.sql

@@ -85,12 +85,14 @@ CREATE TABLE IF NOT EXISTS apps(
     enableBackup BOOLEAN DEFAULT 1, // misnomer: controls automatic daily backups
     enableAutomaticUpdate BOOLEAN DEFAULT 1,
     mailboxName VARCHAR(128), // mailbox of this app. default allocated as '.app'
+    mailboxDomain VARCHAR(128) NOT NULL, // mailbox domain of this apps
     label VARCHAR(128),     // display name
     tagsJson VARCHAR(2048), // array of tags
     dataDir VARCHAR(256) UNIQUE,
     taskId INTEGER, // current task
     errorJson TEXT,
 
+    FOREIGN KEY(mailboxDomain) REFERENCES domains(domain),
     FOREIGN KEY(taskId) REFERENCES tasks(id),
     PRIMARY KEY(id));