Fix 4 bugs from third code review

- Fix delete_proj not persisting cleared current_project to config:
  page reload after deleting active project restored deleted name,
  silently breaking all DB sync
- Fix sync_to_db crash on non-dict batch_data items: add isinstance
  guard matching import_json_file
- Fix output_types ignored in load_dynamic: parse declared types and
  use to_int()/to_float() to coerce values, so downstream ComfyUI
  nodes receive correct types even when API returns strings
- Fix backward-compat comma-split for types not trimming whitespace:
  legacy workflows with "STRING, INT" got types " INT" breaking
  ComfyUI connection type-matching

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

tab_projects_ng.py

@@ -119,6 +119,10 @@ def render_projects_tab(state: AppState):
                                 state.db.delete_project(name)
                                 if state.current_project == name:
                                     state.current_project = ''
+                                    state.config['current_project'] = ''
+                                    save_config(state.current_dir,
+                                                state.config.get('favorites', []),
+                                                state.config)
                                 ui.notify(f'Deleted project "{name}"', type='positive')
                                 render_project_list.refresh()