Issue 2.3 – Add job status tracking and display progress in the UI

[CedricLimAhTock]

Description

Track the analysis job status and display real-time progress to the user while the background job is running.

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Tasks

• Create /api/job-stream using Server-Sent Events (SSE)
• Poll the jobs table and stream status, step, and error
• Build a UI page that listens to the stream and shows:
  • Current status and step
  • Error message if the job fails
  • Redirect to repository page on success