feat(base): add focused-cell atom and cell coordinate types

apps/client/src/ee/base/atoms/base-atoms.ts

@@ -1,6 +1,6 @@
 import { atom } from "jotai";
 import { atomFamily } from "jotai/utils";
-import { EditingCell } from "@/ee/base/types/base.types";
+import { EditingCell, FocusedCell } from "@/ee/base/types/base.types";
 
 // Atoms are scoped per-base via `pageId` so that two BaseTable instances on
 // the same page don't share UI state.
@@ -41,3 +41,15 @@ export const selectedRowIdsAtomFamily = atomFamily((_pageId: string) =>
 export const lastToggledRowIndexAtomFamily = atomFamily((_pageId: string) =>
   atom<number | null>(null),
 );
+
+export const focusedCellAtomFamily = atomFamily((_pageId: string) =>
+  atom<FocusedCell>(null),
+);
+
+export type PendingTypeInsert = {
+  rowId: string;
+  propertyId: string;
+  char: string;
+} | null;
+
+export const pendingTypeInsertAtom = atom<PendingTypeInsert>(null);

apps/client/src/ee/base/types/base.types.ts

@@ -251,10 +251,14 @@ export type IBase = {
   baseSchemaVersion: number;
 };
 
-export type EditingCell = {
+export type CellCoord = {
   rowId: string;
   propertyId: string;
-} | null;
+};
+
+export type EditingCell = CellCoord | null;
+
+export type FocusedCell = CellCoord | null;
 
 export type CreateBaseInput = {
   name: string;