feat: Complete manager migration cleanup and integration

- Remove outdated legacy manager detection from LoadWorkflowWarning
- Update InfoPanelHeader with conflict detection improvements
- Fix all failing unit tests from state management transition
- Clean up algolia search provider type mappings
- Remove unused @ts-expect-error directives
- Add .nx to .gitignore

🤖 Generated with [Claude Code](https://claude.ai/code)

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

tests-ui/tests/store/comfyManagerStore.test.ts

@@ -31,7 +31,7 @@ vi.mock('@/composables/useManagerQueue', () => {
       statusMessage: ref(''),
       allTasksDone: ref(false),
       enqueueTask: enqueueTaskMock,
-      uncompletedCount: ref(0)
+      isProcessingTasks: ref(false)
     }),
     enqueueTask: enqueueTaskMock
   }