Fix stderr lock crash during interpreter shutdown

[liquidsec]

Summary

• Stop QueueListener synchronously in atexit handler instead of spawning a daemon thread that gets killed mid-write during Python finalization
• Fixes Fatal Python error: _enter_buffered_busy: could not acquire lock for <_io.BufferedWriter name='<stderr>'> at shutdown

[github-actions]

📊 Performance Benchmark Report

Comparing 3.0 (baseline) vs fix-shutdown-stderr-crash (current)

📈 Detailed Results (All Benchmarks)

📋 Complete results for all benchmarks - includes both significant and insignificant changes

🧪 Test Name	📏 Base	📏 Current	📈 Change	🎯 Status
Bloom Filter Dns Mutation Tracking Performance	4.10ms	3.97ms	-3.0% ⚪	✅
Bloom Filter Large Scale Dns Brute Force	18.57ms	17.97ms	-3.2% ⚪	✅
Large Closest Match Lookup	333.64ms	323.59ms	-3.0% ⚪	✅
Realistic Closest Match Workload	177.63ms	174.29ms	-1.9% ⚪	✅
Event Memory Medium Scan	1764 B/event	1765 B/event	+0.1% ⚪	✅
Event Memory Large Scan	1756 B/event	1756 B/event	-0.0% ⚪	✅
Event Validation Full Scan Startup Small Batch	367.94ms	368.58ms	+0.2% ⚪	✅
Event Validation Full Scan Startup Large Batch	520.30ms	519.96ms	-0.1% ⚪	✅
Make Event Autodetection Small	26.35ms	26.10ms	-0.9% ⚪	✅
Make Event Autodetection Large	266.17ms	266.73ms	+0.2% ⚪	✅
Make Event Explicit Types	11.58ms	11.51ms	-0.6% ⚪	✅
Excavate Single Thread Small	3.485s	3.424s	-1.8% ⚪	✅
Excavate Single Thread Large	9.233s	9.207s	-0.3% ⚪	✅
Excavate Parallel Tasks Small	3.660s	3.622s	-1.0% ⚪	✅
Excavate Parallel Tasks Large	7.023s	6.999s	-0.3% ⚪	✅
Is Ip Performance	2.94ms	2.92ms	-0.6% ⚪	✅
Make Ip Type Performance	10.68ms	10.70ms	+0.2% ⚪	✅
Mixed Ip Operations	4.19ms	4.15ms	-1.0% ⚪	✅
Typical Queue Shuffle	54.98µs	54.64µs	-0.6% ⚪	✅
Priority Queue Shuffle	607.31µs	600.83µs	-1.1% ⚪	✅

🎯 Performance Summary

✅ No significant performance changes detected (all changes <10%)

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🐍 Python Version 3.11.15

[codecov]

Codecov Report

❌ Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 91%. Comparing base (3a6f2ec) to head (d45d2a4).
⚠️ Report is 3 commits behind head on 3.0.

Files with missing lines	Patch %	Lines
bbot/core/config/logger.py	0%	3 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##             3.0   #2989   +/-   ##
=====================================
+ Coverage     91%     91%   +1%     
=====================================
  Files        436     436           
  Lines      36960   36957    -3     
=====================================
- Hits       33587   33585    -2     
+ Misses      3373    3372    -1     

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