v2.26.2: fix Docker startup crash — data/ package excluded by .dockerignore

The data/ directory became a Python package (oui.py, patterns.py, satellites.py)
in v2.26.0, but .dockerignore still blanket-excluded it as runtime data.
This caused ModuleNotFoundError: No module named 'data.oui' on container startup.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

config.py

@@ -7,10 +7,17 @@ import os
 import sys
 
 # Application version
-VERSION = "2.26.1"
+VERSION = "2.26.2"
 
 # Changelog - latest release notes (shown on welcome screen)
 CHANGELOG = [
+    {
+        "version": "2.26.2",
+        "date": "March 2026",
+        "highlights": [
+            "Fix Docker startup crash — data/ Python package was excluded by .dockerignore",
+        ]
+    },
     {
         "version": "2.26.1",
         "date": "March 2026",