## Refactor page layout widget types into shared package and expose from
SDK
### Why
Widget configuration types were defined only on the server, forcing SDK
consumer apps to import from deep internal `twenty-shared/dist` paths —
fragile and breaks on structural changes. Server DTOs also had no
compile-time guarantee they matched the canonical types.
### What changed
- **`twenty-shared`**: Migrated `ChartFilter`, `GridPosition`,
`RatioAggregateConfig` and all 20 widget configuration variants into
`twenty-shared/types`. `PageLayoutWidgetConfiguration` (base, with
`SerializedRelation`) and `PageLayoutWidgetUniversalConfiguration`
(derived via `FormatRecordSerializedRelationProperties`) are now the
single source of truth.
- **`twenty-sdk`**: Re-exported `AggregateOperations`,
`ObjectRecordGroupByDateGranularity`, `PageLayoutTabLayoutMode`, and
`PageLayoutWidgetUniversalConfiguration` so consumer apps import from
`twenty-sdk` directly.
- **`twenty-server`**: All widget DTOs now `implements` their shared
type for compile-time enforcement. Added helpers to convert nested
`fieldMetadataId` ↔ `fieldMetadataUniversalIdentifier` inside chart
filters. Removed redundant local type re-exports.
