feat(recipes): show a summary modal after rematch runs

Replace the post-run toast cascade and the standalone L4 results modal
with a summary modal modeled on the batch download summary: 3-state
header, stat cards (matched / needs review / unresolved / errors),
an L4 review table with per-entry undo, and a copyable report. Wired
into the global, bulk and single-recipe rematch entries; complete
no-op runs keep the lightweight toast. Obsolete results-modal code,
styles and i18n keys are removed.

static/js/managers/ModalManager.js

@@ -360,19 +360,6 @@ export class ModalManager {
             });
         }
 
-        // Register rematchResultsModal
-        const rematchResultsModal = document.getElementById('rematchResultsModal');
-        if (rematchResultsModal) {
-            this.registerModal('rematchResultsModal', {
-                element: rematchResultsModal,
-                onClose: () => {
-                    this.getModal('rematchResultsModal').element.style.display = 'none';
-                    document.body.classList.remove('modal-open');
-                },
-                closeOnOutsideClick: true
-            });
-        }
-
         document.addEventListener('keydown', this.boundHandleEscape);
         this.initialized = true;
     }