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/app/effect-components/PageChangeEffect.tsx

@@ -29,11 +29,12 @@ import { useResetTableRowSelection } from '@/object-record/record-table/hooks/in
 import { useActiveRecordTableRow } from '@/object-record/record-table/hooks/useActiveRecordTableRow';
 import { useFocusedRecordTableRow } from '@/object-record/record-table/hooks/useFocusedRecordTableRow';
 import { getRecordIndexIdFromObjectNamePluralAndViewId } from '@/object-record/utils/getRecordIndexIdFromObjectNamePluralAndViewId';
+import { AppBasePath } from '@/types/AppBasePath';
+import { AppPath } from '@/types/AppPath';
 import { PageFocusId } from '@/types/PageFocusId';
 import { useResetFocusStackToFocusItem } from '@/ui/utilities/focus/hooks/useResetFocusStackToFocusItem';
 import { FocusComponentType } from '@/ui/utilities/focus/types/FocusComponentType';
 import { useRecoilComponentValue } from '@/ui/utilities/state/component-state/hooks/useRecoilComponentValue';
-import { AppBasePath, AppPath } from 'twenty-shared/types';
 import { isDefined } from 'twenty-shared/utils';
 import { AnalyticsType } from '~/generated/graphql';
 import { usePageChangeEffectNavigateLocation } from '~/hooks/usePageChangeEffectNavigateLocation';