fix: localize empty important package lists

AppImage/scripts/notification_events.py

@@ -3517,7 +3517,9 @@ class PollingCollector:
                 'security_count': str(len(security_pkgs)),
                 'pve_count': str(len(pve_pkgs)),
                 'kernel_count': str(len(kernel_pkgs)),
-                'important_list': '\n'.join(f'  \u2022 {l}' for l in important_lines) if important_lines else 'none',
+                # An empty value is intentionally rendered later by the
+                # notification template as the selected locale's “none”.
+                'important_list': '\n'.join(f'  \u2022 {l}' for l in important_lines),
                 'package_list': ', '.join(important_lines[:6]) if important_lines else '',
             }
             

AppImage/scripts/notification_templates.py

@@ -1831,7 +1831,8 @@ def render_template(event_type: str, data: Dict[str, Any],
             variables[f'{_byte_key}_human'] = _format_bytes_human(data[_byte_key])
 
     # Ensure important_list is never blank (fallback to localized "none")
-    if not variables.get('important_list', '').strip():
+    important_list = str(variables.get('important_list', '')).strip()
+    if not important_list or important_list.casefold() == 'none':
         variables['important_list'] = runtime_message('fallback.none', language)
 
     # Derive the affected object's display name for titles that use it.

AppImage/scripts/tests/test_notification_runtime_i18n.py

@@ -189,6 +189,8 @@ class RuntimeCatalogTests(unittest.TestCase):
         self.assertIn("🛡️ Bezpečnostné aktualizácie: 0", enriched_body)
         self.assertIn("⚙️ Aktualizácie jadra: 0", enriched_body)
         self.assertIn("📋 Dôležité balíky:", enriched_body)
+        self.assertIn("žiadne", enriched_body)
+        self.assertNotIn("\nnone", enriched_body)
 
         for language in self.RUNTIME_LANGUAGES:
             locale_data = {**data, "_notification_language": language}