CSO-21&23: Prevent admins from accepting applications before the job runs

[shanoysinc]

Description ✏️

This PR adds an auto review job status tracking system for applications to monitor the execution status of the automated review process.

• Added auto_review_job_status column to the applications table with values: QUEUED, DONE, FAILED
• New applications are automatically set to QUEUED when created
• When the application.review job completes successfully, the status is updated to DONE
• When the application.review job fails, the status is updated to FAILED
• Updated admin dashboard to only display applications with DONE or FAILED job status
• Added "Auto Review Job Status" column to the applications table in the admin dashboard
• Updated sidebar application count to show pending applications that have been reviewed (status = PENDING AND job status = DONE or FAILED)
• Remove PDF attachment from onboarding email

Type of Change 🐞

• Feature - A non-breaking change which adds functionality.

Checklist ✅

• I have done a self-review of my code.
• I have manually tested my code (if applicable).
• I have added/updated any relevant documentation (if applicable).