refactor: update KPI components for improved layout and clarity

Revised the KpiStatGrid and KpiStatCardBody components to enhance the layout and presentation of KPI tiles. Updated the documentation to reflect the new horizontal compact hybrid design, ensuring better visual organization with the icon on the left and improved label and value alignment. Adjusted the skeleton loading state for a more cohesive user experience.

docs/ui-design-contract.md

@@ -18,7 +18,7 @@ Ops / list / dashboard / detail / settings — только **Frame**, не shad
 | Зона | Block | Preview |
 |------|-------|---------|
 | Shell | `app-shell-12` (+ cmdk/monitor где нужно) | https://reui.io/preview/base/app-shell-12 · https://reui.io/preview/base/app-shell-7 |
-| KPI | hybrid `stats-12` (compact Frame strip: colored icon → value ± variant → label → Badge footer) | https://reui.io/preview/base/stats-12 |
+| KPI | horizontal compact hybrid (icon left + label/Badge + value ± variant; EvoBGP visual) | https://reui.io/preview/base/stats-12 |
 | Dashboard | `dashboard-1` | https://reui.io/preview/base/dashboard-1 |
 | Lists | `data-grid-filtering-2` | https://reui.io/preview/base/data-grid-filtering-2 |
 | Settings | `settings-16` + SettingRow (`settings-7`) | https://reui.io/preview/base/settings-16 · https://reui.io/preview/base/settings-7 |
@@ -31,7 +31,7 @@ Ops / list / dashboard / detail / settings — только **Frame**, не shad
 | Component | Role |
 |-----------|------|
 | `ResourcePage` | Frame + line tabs + Filters + DataGrid |
-| `KpiStatGrid` | hybrid compact stats-12 KPI tiles (`variant`, Badge footer) |
+| `KpiStatGrid` | horizontal compact hybrid KPI tiles (`variant`, Badge) |
 | `OpsDashboard` | KPI + charts + attention queue |
 | `SettingsShell` | settings nav + Outlet |
 | `DetailPanel` | detail Frame sections |