feat: Send a session-end event when stopping an export.

[bgrozev]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 48.02%. Comparing base (38ea5ea) to head (7f4ad25).

Files with missing lines	Patch %	Lines
...in/kotlin/org/jitsi/videobridge/export/Exporter.kt	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2380      +/-   ##
============================================
- Coverage     48.02%   48.02%   -0.01%     
  Complexity     2712     2712              
============================================
  Files           381      381              
  Lines         22064    22066       +2     
  Branches       3348     3350       +2     
============================================
  Hits          10597    10597              
- Misses        10311    10313       +2     
  Partials       1156     1156              

Files with missing lines	Coverage Δ
...in/kotlin/org/jitsi/videobridge/export/Exporter.kt	0.00% <0.00%> (ø)

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 38ea5ea...7f4ad25. Read the comment docs.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.