Enable automatic language detection so CJK text is recognized

Vision defaulted to the first listed language and turned Chinese into
Latin garbage (你好世界 became 177WR). automaticallyDetectsLanguage fixes
it; the smoke test now covers Chinese so it cannot regress.

💘 Generated with Crush

Assisted-by: Crush:deepseek-v4-flash-0731

build-app.sh

@@ -108,9 +108,9 @@ cat > "$APP/Contents/Info.plist" <<'PLIST'
     <key>CFBundleIconFile</key>
     <string>Icon</string>
     <key>CFBundleShortVersionString</key>
-    <string>1.9.0</string>
+    <string>1.9.1</string>
     <key>CFBundleVersion</key>
-    <string>90</string>
+    <string>91</string>
     <key>LSUIElement</key>
     <true/>
     <key>NSHighResolutionCapable</key>