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-ui/src/data-display/StyledTintedIconTileContainer/StyledTintedIconTileContainer.module.scss

@@ -0,0 +1,12 @@
+.root {
+  box-sizing: border-box;
+  display: flex;
+  flex-shrink: 0;
+  align-items: center;
+  justify-content: center;
+  width: var(--tinted-icon-tile-dimension, var(--t-spacing-4));
+  height: var(--tinted-icon-tile-dimension, var(--t-spacing-4));
+  border: var(--tinted-icon-tile-border, none);
+  border-radius: 4px;
+  background-color: var(--tinted-icon-tile-background-color, transparent);
+}

packages/twenty-ui/src/data-display/StyledTintedIconTileContainer/StyledTintedIconTileContainer.module.scss.d.ts

@@ -0,0 +1,4 @@
+declare const classNames: {
+  readonly root: 'root';
+};
+export default classNames;

packages/twenty-ui/src/data-display/StyledTintedIconTileContainer/StyledTintedIconTileContainer.tsx

@@ -0,0 +1,35 @@
+import { clsx } from 'clsx';
+
+import styles from './StyledTintedIconTileContainer.module.scss';
+
+type StyledTintedIconTileContainerProps =
+  React.ComponentPropsWithoutRef<'div'> & {
+    $backgroundColor?: string;
+    $borderColor?: string;
+    $dimension?: string;
+  };
+
+export const StyledTintedIconTileContainer = ({
+  $backgroundColor,
+  $borderColor,
+  $dimension,
+  className,
+  style,
+  ...rest
+}: StyledTintedIconTileContainerProps) => (
+  <div
+    // oxlint-disable-next-line react/jsx-props-no-spreading
+    {...rest}
+    className={clsx(styles.root, className)}
+    style={
+      {
+        '--tinted-icon-tile-background-color': $backgroundColor,
+        '--tinted-icon-tile-border': $borderColor
+          ? `1px solid ${$borderColor}`
+          : undefined,
+        '--tinted-icon-tile-dimension': $dimension,
+        ...style,
+      } as React.CSSProperties
+    }
+  />
+);