Update aggregated performance analysis with 4.2.6 release

Now analyzing 5 releases: 4.2.0, 4.2.3, 4.2.4, 4.2.5, 4.2.6

Key findings with 4.2.6 included:
- Haskell now shows 509.5% variance (21s → 128s)
- V shows 418.2% variance (22s → 114s)
- Elixir remains highly variable at 425.0% (20s → 105s)
- Average duration for 4.2.6: 54s (improvement from 4.2.5's 67s)
- Still shows non-deterministic scheduling patterns

Updated charts reflect 5-release trend analysis.

AGGREGATED-PERFORMANCE.md

@@ -1,6 +1,6 @@
 # UN Inception: Aggregated Performance Analysis
 
-**Analysis Date:** 1768854160.7299476
+**Analysis Date:** 1768854271.4302914
 **Reports Analyzed:** 4.2.0, 4.2.3, 4.2.4, 4.2.5, 4.2.6
 
 ---
@@ -529,5 +529,5 @@ For questions about this methodology or to report issues:
 ---
 
 **Generated by UN Inception Performance Analysis Pipeline**
-**Analysis Date:** 2026-01-19T15:22:40.836458
+**Analysis Date:** 2026-01-19T15:24:31.470403
 **Report Version:** 1.0.0