Start Jotai Migration (#17893)

## Recoil → Jotai progressive migration: infrastructure +
ChipFieldDisplay

### Benchmark

In the beginning, there was no hope:
<img width="1180" height="948" alt="image"
src="https://github.com/user-attachments/assets/f8635991-52e6-4958-8240-6ba7214132b2"
/>

Then the hope was reborn
<img width="2070" height="948" alt="image"
src="https://github.com/user-attachments/assets/be1182b9-1c8d-4fdc-ab4c-1484ad74449d"
/>



### Approach

We introduce a **V2 state management layer** backed by Jotai that
mirrors the existing Recoil API, enabling component-by-component
migration without a big-bang rewrite.

#### V2 API (Jotai-backed, Recoil-ergonomic)

- `createStateV2` / `createFamilyStateV2` — drop-in replacements for
`createState` / `createFamilyState`, returning wrapper types over Jotai
atoms
- `useRecoilValueV2`, `useRecoilStateV2`, `useFamilyRecoilValueV2`, etc.
— thin wrappers around Jotai's `useAtomValue` / `useAtom` / `useSetAtom`
- A shared `jotaiStore` (via `createStore()`) passed to a
`<JotaiProvider>` wrapping `<RecoilRoot>`, also accessible imperatively
for dual-writes

#### Dual-write bridge for progressive migration

For state shared between migrated and non-migrated components, we use
**dual-write**: writers update both the Recoil atom and the Jotai V2
atom (via `jotaiStore.set()`). This avoids sync components or extra
subscriptions.

Write sites updated: `useUpsertRecordsInStore`, `useSetRecordTableData`,
`ListenRecordUpdatesEffect`, `RecordShowEffect`,
`useLoadRecordIndexStates`, `useUpdateObjectViewOptions`.

#### First migration: ChipFieldDisplay render path

- `useChipFieldDisplay` → reads `recordStoreFamilyStateV2` via
`useFamilyRecoilValueV2` (was `useRecoilValue(recordStoreFamilyState)`)
- `RecordChip` → reads `recordIndexOpenRecordInStateV2` via
`useRecoilValueV2` (was `useRecoilValue(recordIndexOpenRecordInState)`)
- `Avatar` (twenty-ui) and event handlers (`useOpenRecordInCommandMenu`)
left on Recoil — not on the render path / in a different package

#### Pattern for migrating additional state

1. Create V2 atom: `createStateV2` or `createFamilyStateV2`
2. Add `jotaiStore.set(v2Atom, value)` at each write site
3. Switch readers to `useRecoilValueV2(v2Atom)`
4. Once all readers are migrated, remove the Recoil atom and dual-writes

#### Why not jotai-recoil-adapter?

Evaluated
[jotai-recoil-adapter](https://github.com/clockelliptic/jotai-recoil-adapter)
— not production-ready (21 open issues, no React 19, forces providerless
mode, missing types). We built a purpose-built thin layer instead.

packages/twenty-front/src/modules/users/components/MetadataProviderEffect.tsx

@@ -15,6 +15,7 @@ import { type PageLayout } from '@/page-layout/types/PageLayout';
 import { transformPageLayout } from '@/page-layout/utils/transformPageLayout';
 import { logicFunctionsState } from '@/settings/logic-functions/states/logicFunctionsState';
 import { getDateFnsLocale } from '@/ui/field/display/utils/getDateFnsLocale.util';
+import { jotaiStore } from '@/ui/utilities/state/jotai/jotaiStore';
 import { coreViewsState } from '@/views/states/coreViewState';
 import { type CoreViewWithRelations } from '@/views/types/CoreViewWithRelations';
 import { type ColorScheme } from '@/workspace-member/types/WorkspaceMember';
@@ -32,6 +33,7 @@ import {
   useFindManyLogicFunctionsQuery,
 } from '~/generated-metadata/graphql';
 import { dateLocaleState } from '~/localization/states/dateLocaleState';
+import { dateLocaleStateV2 } from '~/localization/states/dateLocaleStateV2';
 import { dynamicActivate } from '~/utils/i18n/dynamicActivate';
 import { isDeeplyEqual } from '~/utils/isDeeplyEqual';
 import { isMatchingLocation } from '~/utils/isMatchingLocation';
@@ -61,10 +63,12 @@ export const MetadataProviderEffect = () => {
         const localeValue = snapshot.getLoadable(dateLocaleState).getValue();
         if (localeValue.locale !== newLocale) {
           getDateFnsLocale(newLocale).then((localeCatalog) => {
-            set(dateLocaleState, {
+            const newValue = {
               locale: newLocale,
               localeCatalog: localeCatalog || enUS,
-            });
+            };
+            set(dateLocaleState, newValue);
+            jotaiStore.set(dateLocaleStateV2.atom, newValue);
           });
         }
       },