fix(ui): improve React Query hooks and fix edge cases

- Update query keys to include all relevant parameters (branches, agents)
- Fix use-branches to pass includeRemote parameter to query key
- Fix use-settings to include sources in agents query key
- Update running-agents-view to use correct query key structure
- Update use-spec-loading to properly use spec query hooks
- Add missing queryClient invalidation in auto-mode mutations
- Add missing cache invalidation in spec mutations after creation

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/ui/src/hooks/mutations/use-github-mutations.ts

@@ -9,6 +9,7 @@ import { getElectronAPI, GitHubIssue, GitHubComment } from '@/lib/electron';
 import { queryKeys } from '@/lib/query-keys';
 import { toast } from 'sonner';
 import type { LinkedPRInfo, ModelId } from '@automaker/types';
+import { resolveModelString } from '@automaker/model-resolver';
 
 /**
  * Input for validating a GitHub issue
@@ -64,10 +65,13 @@ export function useValidateIssue(projectPath: string) {
         linkedPRs,
       };
 
+      // Resolve model alias to canonical model identifier
+      const resolvedModel = model ? resolveModelString(model) : undefined;
+
       const result = await api.github.validateIssue(
         projectPath,
         validationInput,
-        model,
+        resolvedModel,
         thinkingLevel,
         reasoningEffort
       );