Log details about failing jobs

[nolan1999]

• Add "runtime_details" text field to job in DB (user-facing API).
• Add "details" field in job update endpoint (user-facing API).
• Add details and log location to the notification email (user-facing API).
• Add "details" field in job update endpoint (worker-facing API).
• Add "details" argument in job update function, specify value when calling from endpoint and silent fails check function (worker-facing API).