Function inferFilterFields

inferFilterFields<T extends Record<string, unknown>>(
sampleRow: T,
columns?: readonly ColumnMeta[],
): FilterFieldDefinition<T>[]
Infers FilterFieldDefinitions from a sample data row and optional column metadata.

Inference strategy
1. Keys — taken from columns (if provided), otherwise from Object.keys(sampleRow).
2. Labels — use the column's headerText when available, otherwise humanise the key (firstName → "First Name").
3. Types — determined by inspecting the sample row value via sniffFieldType.
Type Parameters
- T extends Record<string, unknown>
  The row object type.
Parameters
- sampleRow: T
  A representative data row (typically the first).
- Optionalcolumns: readonly ColumnMeta[]
  Optional array of column metadata to constrain and label the fields.
Returns FilterFieldDefinition<T>[]
An array of inferred filter field definitions.
Example
```
const fields = inferFilterFields(
  { name: "Alice", age: 30, joined: "2024-01-15" },
);
// → [
//   { key: "name",   label: "Name",   type: "string" },
//   { key: "age",    label: "Age",    type: "number" },
//   { key: "joined", label: "Joined", type: "date"   },
// ]
```
- Defined in packages/ui-kit/src/lib/filter/infer-filter-fields.ts:97