Teleport Progress Display

What: Visual progress indicator when teleporting into a remote session, showing each step of the process.

How to use: When teleporting to a session, you'll now see a multi-step progress display:

◐ Teleporting session…
  ✓ Validating session
  ◐ Fetching session logs
  ○ Getting branch info
  ○ Checking out branch

Details:

• Shows animated spinner for current step
• Displays checkmarks for completed steps
• Four stages: validating, fetching_logs, fetching_branch, checking_out
• Evidence: di2 steps array at line 503776; SU5 progress component at line 503695