Reorganize twenty-ui into best-practice component domains and per-component folders (#21745)

Reorganizes `twenty-ui`'s component organization to follow how the best
UI libraries (MUI, Mantine, Base UI, Polaris) structure their source,
now that the package has stabilized.

**Taxonomy** — dissolves the meaningless `components/` junk-drawer and
the 107-file `display/` mega-category. New domains/subpaths:
`data-display`, `typography`, `icon`, `surfaces`; `feedback` and
`layout` absorb the rest (banners/callout/info + placeholders →
feedback; modal/card → surfaces; motion + separators → layout).

**Per-component layout** — every component is now
`<domain>/<ComponentName>/<ComponentName>.tsx` with colocated
styles/stories/types, `internal/` for private helpers and `parts/` for
re-exported compound sub-parts. The redundant inner `/components/` is
gone. `icon` and `json-visualizer` are kept as cohesive subsystems.

**Also:** adds a tree-shakeable root barrel (`import { Button } from
'twenty-ui'`), the generator now owns `individual-entry.ts`, and a real
barrel-leak bug is fixed (private `internals/` parts were leaking into
the public API).

Consumer imports (~1.2k files) and the `twenty-sdk` UI aggregator were
updated by codemod. The change is **export-neutral** except 16
intentionally-removed private internals symbols (all verified
unconsumed). Gates green: typecheck, lint, build, size-limit, storybook.


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packages/twenty-front/src/modules/settings/workspace/components/SettingsWorkspaceEmailChannelDomainStatusCell.tsx

@@ -6,7 +6,7 @@ import { GetEmailingDomainsDocument } from '~/generated-metadata/graphql';
 import { getColorByEmailingDomainStatus } from '~/pages/settings/emailing-domains/utils/getEmailingDomainStatusColor';
 import { getTextByEmailingDomainStatus } from '~/pages/settings/emailing-domains/utils/getEmailingDomainStatusText';
 import { isDefined } from 'twenty-shared/utils';
-import { Status } from 'twenty-ui/display';
+import { Status } from 'twenty-ui/data-display';
 
 type SettingsWorkspaceEmailChannelDomainStatusCellProps = {
   item: MessageChannel;

packages/twenty-front/src/modules/settings/workspace/components/SettingsWorkspaceEmailGroupSourceCell.tsx

@@ -1,7 +1,8 @@
 import { styled } from '@linaria/react';
 
 import { type MessageChannel } from '@/accounts/types/MessageChannel';
-import { IconMail, OverflowingTextWithTooltip } from 'twenty-ui/display';
+import { IconMail } from 'twenty-ui/icon';
+import { OverflowingTextWithTooltip } from 'twenty-ui/surfaces';
 import { themeCssVariables } from 'twenty-ui/theme-constants';
 
 const StyledNameCell = styled.div`

packages/twenty-front/src/modules/settings/workspace/components/ToggleImpersonate.tsx

@@ -4,8 +4,8 @@ import { SettingsOptionCardContentToggle } from '@/settings/components/SettingsO
 import { useSnackBar } from '@/ui/feedback/snack-bar-manager/hooks/useSnackBar';
 import { CombinedGraphQLErrors } from '@apollo/client/errors';
 import { t } from '@lingui/core/macro';
-import { IconLifebuoy } from 'twenty-ui/display';
-import { Card } from 'twenty-ui/layout';
+import { IconLifebuoy } from 'twenty-ui/icon';
+import { Card } from 'twenty-ui/surfaces';
 import { useMutation } from '@apollo/client/react';
 import { UpdateWorkspaceDocument } from '~/generated-metadata/graphql';