src/store/store.ts

```typescript
import { configureStore } from '@reduxjs/toolkit'
import authSlice from './slices/authSlice'
import themeSlice from './slices/themeSlice'
import videoSlice from './slices/videoSlice'
import channelSlice from './slices/channelSlice'
import searchSlice from './slices/searchSlice'
import uiSlice from './slices/uiSlice'

export const store = configureStore({
  reducer: {
    auth: authSlice,
    theme: themeSlice,
    videos: videoSlice,
    channels: channelSlice,
    search: searchSlice,
    ui: uiSlice,
  },
  middleware: (getDefaultMiddleware) =>
    getDefaultMiddleware({
      serializableCheck: {
        ignoredActions: ['persist/PERSIST', 'persist/REHYDRATE'],
      },
    }),
})

export type RootState = ReturnType<typeof store.getState>
export type AppDispatch = typeof store.dispatch
```