feat(editor): F4.6e the e-mail program and e-mail server on a computer's desktop

The oracle MailWindowRun uses Java's e-mail windows as a person does and
answers their dialogs. The core sets and saves the program's account,
deletes a mail, checks a form as Java's window does, and gives the server
its domain, new and removed accounts and the window's own line; the room
sends both programs' views and takes their actions; the editor has both
windows. Better than Java: a name field for a new account, a user name the
server has is refused, deleting hits the folder shown, a new domain goes
into the accounts file at once.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packages/fls/src/exportProject.ts

@@ -75,7 +75,7 @@
 
 import {
   javaFileTypeName,
-  accountFileField,
+  clientAccountFileText,
   serverAccountsFileText,
   javaBase64,
   defaultSwitchConfiguration,
@@ -413,24 +413,9 @@ function javaContact(contact: EmailContact): JavaContact {
   return { ...contact };
 }
 
-/** A field of an account file: each character it cannot carry becomes a space, with a warning. */
-const field = accountFileField;
-
-/** EmailKonto.toString: nine fields; a field may hold no ';' and no line break. */
+/** EmailKonto.toString (the core's clientAccountFileText). */
 function clientAccountFile(client: EmailClientConfiguration, warn: Warn): string {
-  const account = client.account!;
-  const text = (value: string, what: string) => field(value, /[;\r\n]/, `${EMAIL_CLIENT_FILE}: ${what}`, warn);
-  return [
-    text(account.pop3Host, 'POP3 server'),
-    text(account.smtpHost, 'SMTP server'),
-    String(account.pop3Port),
-    String(account.smtpPort),
-    text(account.username, 'user name'),
-    text(account.password, 'password'),
-    text(account.lastName, 'last name'),
-    text(account.firstName, 'first name'),
-    text(account.email, 'address'),
-  ].join(';');
+  return clientAccountFileText(client.account!, warn);
 }
 
 /**