v2.26.5: fix database errors crashing entire UI (#190)

get_setting() now catches sqlite3.OperationalError and returns the
default value. Previously, an inaccessible database (e.g. root-owned
instance/ from sudo) caused inject_offline_settings to crash every
page render with 500 Internal Server Error.

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

config.py

@@ -7,10 +7,17 @@ import os
 import sys
 
 # Application version
-VERSION = "2.26.4"
+VERSION = "2.26.5"
 
 # Changelog - latest release notes (shown on welcome screen)
 CHANGELOG = [
+    {
+        "version": "2.26.5",
+        "date": "March 2026",
+        "highlights": [
+            "Fix database errors crashing the entire UI — pages now degrade gracefully",
+        ]
+    },
     {
         "version": "2.26.4",
         "date": "March 2026",