Fully deprecate old recoil (#18210)

## Summary

Removes the `recoil` dependency entirely from `package.json` and
`twenty-front/package.json`, completing the migration to Jotai as the
sole state management library.

Removes all Recoil infrastructure: `RecoilRoot` wrapper from `App.tsx`
and test decorators, `RecoilDebugObserver`, Recoil-specific ESLint rules
(`use-getLoadable-and-getValue-to-get-atoms`,
`useRecoilCallback-has-dependency-array`), and legacy Recoil utility
hooks/types (`useRecoilComponentState`, `useRecoilComponentValue`,
`createComponentState`, `createFamilyState`, `getSnapshotValue`,
`cookieStorageEffect`, `localStorageEffect`, etc.).

Renames all `V2`-suffixed Jotai state files and types to their canonical
names (e.g., `ComponentStateV2` -> `ComponentState`,
`agentChatInputStateV2` -> `agentChatInputState`, `SelectorCallbacksV2`
-> `SelectorCallbacks`), and removes the now-redundant V1 counterparts.

Updates ~433 files across the codebase to use the renamed Jotai imports,
remove Recoil imports, and clean up test wrappers (`RecoilRootDecorator`
-> `JotaiRootDecorator`).

packages/twenty-front/src/modules/debug/components/RecoilDebugObserver.tsx

@@ -1,40 +0,0 @@
-import { useRecoilTransactionObserver_UNSTABLE } from 'recoil';
-
-import { logDebug } from '~/utils/logDebug';
-
-const formatTitle = (stateName: string) => {
-  const headerCss = [
-    'color: gray; font-weight: lighter',
-    'color: black; font-weight: bold;',
-  ];
-
-  const parts = ['%c recoil', `%c${stateName}`];
-
-  return [parts.join(' '), ...headerCss];
-};
-
-export const RecoilDebugObserverEffect = () => {
-  const isDebugMode = process.env.IS_DEBUG_MODE === 'true';
-
-  useRecoilTransactionObserver_UNSTABLE(({ snapshot }) => {
-    if (!isDebugMode) {
-      return;
-    }
-    for (const node of Array.from(
-      snapshot.getNodes_UNSTABLE({ isModified: true }),
-    )) {
-      const loadable = snapshot.getLoadable(node);
-
-      const titleArgs = formatTitle(node.key);
-
-      console.groupCollapsed(...titleArgs);
-
-      logDebug('STATE', loadable.state);
-
-      logDebug('CONTENTS', loadable.contents);
-
-      console.groupEnd();
-    }
-  });
-  return null;
-};