@@ -205,7 +205,7 @@ const result = CurrencyConfigSchema.parse(data);
 | **width** | `number` | optional | Fixed column width in px; omitted columns use type-based role sizing (text flexes, numeric/date/select stay fixed). |
 | **required** | `boolean` | optional | Cell is flagged inline-invalid while empty. Computed columns are never required. |
 | **options** | `{ label: string; value: string }[]` | optional | Select-cell options for `type: 'select'`; derived from the child field's options when the column declares no `type`. |
-| **prefix** | `string` | optional | Currency symbol rendered inside a `currency` cell (default '¥'). |
+| **prefix** | `string` | optional | Symbol shown in a `currency` cell in place of the resolved currency's own symbol. No default: when omitted, the cell shows the symbol of the currency it resolves. It replaces the symbol only — the amount's decimal places stay the currency's. |
 | **step** | `number` | optional | Input step for numeric cells. |
 | **reference** | `string` | optional | Referenced object for `type: 'lookup'` cells; derived from the child lookup field when the column declares no `type`. |
 | **displayField** | `string` | optional | Label field shown for a picked lookup record. |
@@ -215,7 +215,7 @@ const result = CurrencyConfigSchema.parse(data);
 | **defaultHidden** | `boolean` | optional | Collapsed into the grid's column chooser by default (not dropped); required columns are never default-hidden. |
 | **computed** | `boolean` | optional | Read-only computed column, recomputed live from sibling cells via `expr` and written back into the row. |
 | **expr** | `string` | optional | Arithmetic expression for a computed column — a BARE string over `+ - * / %`, parentheses, numeric literals and field refs (`record.qty` or `qty`), evaluated by the grid's own safe evaluator. Deliberately NOT a CEL Expression envelope; `{ dialect, source }` is refused here. |
-| **scale** | `integer` | optional | Decimal places to round a computed numeric/currency result to (integer 0-100). The upper bound is the renderer's: the grid rounds with `toFixed`, which throws a RangeError above 100. |
+| **scale** | `integer` | optional | Decimal places to round a computed numeric result to (integer 0-100). REFUSED on a column declaring `type: 'currency'` — delete it there: the currency's ISO 4217 minor unit decides. The upper bound is the renderer's: the grid rounds with `toFixed`, which throws a RangeError above 100. |
 | **autofill** | `boolean` | optional | For `lookup` columns: picking a record copies its same-named fields into sibling columns (a product's unit_price/description). On by default; set false to disable. |
 | **readonlyWhen** | `string \| { dialect: Enum<'cel' \| 'cron' \| 'template'>; source: string; ast?: any; meta?: object }` | optional | Predicate (CEL) — the cell is read-only when TRUE, evaluated per row against the row as `record` plus the header as `parent` (e.g. P`parent.status == 'paid'`). |
 | **requiredWhen** | `string \| { dialect: Enum<'cel' \| 'cron' \| 'template'>; source: string; ast?: any; meta?: object }` | optional | Predicate (CEL) — the cell is required when TRUE. Same `record` + `parent` scope as `readonlyWhen`. PRESENTATION ONLY: this flags the cell inline-invalid in the grid; nothing on the write path reads it. The server-enforced contract is the child FIELD's own `requiredWhen` — a transition gate, see `Field.requiredWhen` — which hydration copies onto an identity-only column, so declaring the requirement here alone enforces nothing. |
@@ -354,7 +354,7 @@ Allowed Values: `phone`, `id_card`, `bank_account`, `email`, `name`
 | **width** | `number` | optional | Fixed column width in px; omitted columns use type-based role sizing (text flexes, numeric/date/select stay fixed). |
 | **required** | `boolean` | optional | Cell is flagged inline-invalid while empty. Computed columns are never required. |
 | **options** | `{ label: string; value: string }[]` | optional | Select-cell options for `type: 'select'`; derived from the child field's options when the column declares no `type`. |
-| **prefix** | `string` | optional | Currency symbol rendered inside a `currency` cell (default '¥'). |
+| **prefix** | `string` | optional | Symbol shown in a `currency` cell in place of the resolved currency's own symbol. No default: when omitted, the cell shows the symbol of the currency it resolves. It replaces the symbol only — the amount's decimal places stay the currency's. |
 | **step** | `number` | optional | Input step for numeric cells. |
 | **reference** | `string` | optional | Referenced object for `type: 'lookup'` cells; derived from the child lookup field when the column declares no `type`. |
 | **displayField** | `string` | optional | Label field shown for a picked lookup record. |
@@ -364,7 +364,7 @@ Allowed Values: `phone`, `id_card`, `bank_account`, `email`, `name`
 | **defaultHidden** | `boolean` | optional | Collapsed into the grid's column chooser by default (not dropped); required columns are never default-hidden. |
 | **computed** | `boolean` | optional | Read-only computed column, recomputed live from sibling cells via `expr` and written back into the row. |
 | **expr** | `string` | optional | Arithmetic expression for a computed column — a BARE string over `+ - * / %`, parentheses, numeric literals and field refs (`record.qty` or `qty`), evaluated by the grid's own safe evaluator. Deliberately NOT a CEL Expression envelope; `{ dialect, source }` is refused here. |
-| **scale** | `integer` | optional | Decimal places to round a computed numeric/currency result to (integer 0-100). The upper bound is the renderer's: the grid rounds with `toFixed`, which throws a RangeError above 100. |
+| **scale** | `integer` | optional | Decimal places to round a computed numeric result to (integer 0-100). REFUSED on a column declaring `type: 'currency'` — delete it there: the currency's ISO 4217 minor unit decides. The upper bound is the renderer's: the grid rounds with `toFixed`, which throws a RangeError above 100. |
 | **autofill** | `boolean` | optional | For `lookup` columns: picking a record copies its same-named fields into sibling columns (a product's unit_price/description). On by default; set false to disable. |
 | **readonlyWhen** | `string \| { dialect: Enum<'cel' \| 'cron' \| 'template'>; source: string; ast?: any; meta?: object }` | optional | Predicate (CEL) — the cell is read-only when TRUE, evaluated per row against the row as `record` plus the header as `parent` (e.g. P`parent.status == 'paid'`). |
 | **requiredWhen** | `string \| { dialect: Enum<'cel' \| 'cron' \| 'template'>; source: string; ast?: any; meta?: object }` | optional | Predicate (CEL) — the cell is required when TRUE. Same `record` + `parent` scope as `readonlyWhen`. PRESENTATION ONLY: this flags the cell inline-invalid in the grid; nothing on the write path reads it. The server-enforced contract is the child FIELD's own `requiredWhen` — a transition gate, see `Field.requiredWhen` — which hydration copies onto an identity-only column, so declaring the requirement here alone enforces nothing. |