New SOAP method getTicketFile() on BcSoapGateway calls BC's
GetTicketFile to retrieve file attachments as Base64, decodes in
memory and returns binary data without writing to disk.
New proxy endpoint helpdesk/ticket-file-data streams files directly
to the browser with correct MIME type. Images served inline, other
files as download attachment.
TicketCommunicationService now attaches file_entry_no and file_name
to file-type events. Frontend renders download links with bi-download
icon and inline image previews for jpg/png/gif attachments.
Works in both ticket detail and debitor detail communication feeds.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>