fix(autocomplete): sync active filters via server-side store (#1091)

The LoRA Manager page kept its active filters in localStorage, which the
ComfyUI-side autocomplete read directly. When the two run in different
browsers, origins, or the ComfyUI Desktop Electron shell, localStorage is
not shared and the active-filters search silently did nothing.

The manager page now mirrors its filter state to a server-side in-memory
store (PUT /api/lm/{prefix}/active-filters), pushed on every change via a
storage-listener hook and once on page load. The autocomplete widget sends
only use_active_filters=true, and the relative-paths endpoint injects the
stored filters into the search, with explicit query params taking
precedence.

static/js/checkpoints.js

@@ -3,6 +3,7 @@ import { confirmDelete, closeDeleteModal, confirmExclude, closeExcludeModal } fr
 import { createPageControls } from './components/controls/index.js';
 import { ModelDuplicatesManager } from './components/ModelDuplicatesManager.js';
 import { MODEL_TYPES } from './api/apiConfig.js';
+import { initActiveFiltersSync } from './utils/activeFiltersSync.js';
 
 // Initialize the Checkpoints page
 export class CheckpointsPageManager {
@@ -32,6 +33,9 @@ export class CheckpointsPageManager {
         // Initialize common page features (including context menus)
         appCore.initializePageFeatures();
 
+        // Mirror active filters to the backend for the ComfyUI-side autocomplete
+        initActiveFiltersSync(MODEL_TYPES.CHECKPOINT);
+
         console.log('Checkpoints Manager initialized');
     }
 }