Integrate the ISO verification extension in the web assistant's prototype

Originally created by @intrigeri on #8568 (Redmine)

(Assignees are sajolida and tchou.)

Feature Branch: web/8568-extension-in-assistant

Parent Task: #7552 (closed)

Related issues

• Related to #8588 (closed)
• Has duplicate #10530 (closed)
• Blocked by #8567 (closed)
• Blocks #8569 (closed)