feat: add base model filtering across search sources, API routes, and frontend UI

web/resolver/shell/lifecycle_graph_methods.js

@@ -32,6 +32,7 @@ export const lifecycleGraphMethods = {
 
         // Ensure all models are loaded for dropdown
         await this.ensureCapabilitiesLoaded();
+        await this.ensureBaseModelsLoaded();
         await this.ensureAllModelsLoaded();
         await this.ensureDownloadDirectoriesLoaded();
 

web/resolver/shell/workflow_state_methods.js

@@ -186,10 +186,12 @@ export const workflowStateMethods = {
         }
 
         clone.selectedSource = clone.selectedSource || 'all';
+        clone.selectedBaseModel = clone.selectedBaseModel || 'auto';
         clone.results = this.mergeSearchResults({}, clone.results || {});
         clone.lastAttemptSources = Array.isArray(clone.lastAttemptSources)
             ? clone.lastAttemptSources
             : [];
+        clone.lastAttemptBaseModelContext = clone.lastAttemptBaseModelContext || '';
         clone.lastAttemptFound = clone.lastAttemptFound ?? null;
         clone.lastAttemptError = clone.lastAttemptError || null;
         clone.sourceProgress = clone.sourceProgress || {};
@@ -229,6 +231,7 @@ export const workflowStateMethods = {
 
     isPersistableSearchState(state = {}) {
         if ((state?.selectedSource || 'all') !== 'all') return true;
+        if ((state?.selectedBaseModel || 'auto') !== 'auto') return true;
         if (state?.lastAttemptError) return true;
         if (this.hasSearchResults(state?.results || {})) return true;