Prevent csv export injections (#14347)

**Small Security Issue:** CSV exports were vulnerable to formula
injection attacks when users entered values starting with =, +, -, or @.
(only happens if a logged-in user injects corrupted data)

Solution:
- Added ZWJ (Zero-Width Joiner) protection that prefixes dangerous
values with invisible Unicode character
- This is the best way to preserve original data while preventing Excel
from executing formulas
- Added import cleanup to restore original values when re-importing
 
Changes:
- New sanitizeValueForCSVExport() function for security
- Updated all CSV export paths to use both security + formatting
functions
- Added comprehensive tests covering attack vectors and international
characters
- Also added cursor rules for better code consistency

---------

Co-authored-by: Charles Bochet <charlesBochet@users.noreply.github.com>

packages/twenty-front/src/modules/settings/two-factor-authentication/components/DeleteTwoFactorAuthenticationMethod.tsx

@@ -2,13 +2,13 @@ import { useRecoilValue } from 'recoil';
 
 import { useAuth } from '@/auth/hooks/useAuth';
 import { currentUserState } from '@/auth/states/currentUserState';
+import { SettingsPath } from '@/types/SettingsPath';
 import { useSnackBar } from '@/ui/feedback/snack-bar-manager/hooks/useSnackBar';
 import { ConfirmationModal } from '@/ui/layout/modal/components/ConfirmationModal';
 import { useModal } from '@/ui/layout/modal/hooks/useModal';
 import { useLoadCurrentUser } from '@/users/hooks/useLoadCurrentUser';
 import { useLingui } from '@lingui/react/macro';
 import { useParams } from 'react-router-dom';
-import { SettingsPath } from 'twenty-shared/types';
 import { isDefined } from 'twenty-shared/utils';
 import { H2Title } from 'twenty-ui/display';
 import { Button } from 'twenty-ui/input';