feat: implement same_base update strategy for model annotations

Add support for configurable update flag strategy with new "same_base" mode that considers base model versions when determining update availability. The strategy is controlled by the "update_flag_strategy" setting.

When strategy is set to "same_base":
- Uses get_records_bulk instead of has_updates_bulk
- Compares model versions against highest local versions per base model
- Provides more granular update detection based on base model relationships

Fallback to existing bulk or individual update checks when:
- Strategy is not "same_base"
- Bulk operations fail
- Records are unavailable

This enables more precise update flagging for models sharing common bases.

py/services/settings_manager.py

@@ -61,6 +61,7 @@ DEFAULT_SETTINGS: Dict[str, Any] = {
     "priority_tags": DEFAULT_PRIORITY_TAG_CONFIG.copy(),
     "model_name_display": "model_name",
     "model_card_footer_action": "example_images",
+    "update_flag_strategy": "any",
 }