feat: Add default value support for table columns (#4043)

* Add 'type', 'description', and 'default' fields to Table schema and enhance formatter validation

* Add type-based mapping to formatter validator in table schema

* Add default value support for new table rows in TableNodeComponent

* Add optional 'description' and 'default' fields to ColumnField interface

* Add default value inference for table columns in utils.ts

- Initialize 'default' property for table columns to null.
- Infer default value from the first row of data if available.
- Adjust column formatter determination based on sample value.

* Add default table input validation and update formatter logic in Column model

* Add unit tests for Column class in table schema module

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Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

src/frontend/src/components/parameterRenderComponent/components/TableNodeComponent/index.tsx

@@ -92,7 +92,7 @@ export default function TableNodeComponent({
   function addRow() {
     const newRow = {};
     componentColumns.forEach((column) => {
-      newRow[column.name] = null;
+      newRow[column.name] = column.default ?? null; // Use the default value if available
     });
     handleOnNewValue({ value: [...value, newRow] });
   }

src/frontend/src/types/utils/functions.ts

@@ -16,10 +16,12 @@ export enum FormatterType {
   json = "json",
 }
 
-export type ColumnField = {
-  display_name: string;
+export interface ColumnField {
   name: string;
+  display_name: string;
   sortable: boolean;
   filterable: boolean;
   formatter?: FormatterType;
-};
+  description?: string;
+  default?: any; // Add this line
+}

src/frontend/src/utils/utils.ts

@@ -528,7 +528,18 @@ export function generateBackendColumnsFromValue(rows: Object[]): ColumnField[] {
       display_name: column.headerName ?? "",
       sortable: true,
       filterable: true,
+      default: null, // Initialize default to null or appropriate value
     };
+
+    // Attempt to infer the default value from the data, if possible
+    if (rows.length > 0) {
+      const sampleValue = rows[0][column.field ?? ""];
+      if (sampleValue !== undefined) {
+        newColumn.default = sampleValue;
+      }
+    }
+
+    // Determine the formatter based on the sample value
     if (rows[0] && rows[0][column.field ?? ""]) {
       const value = rows[0][column.field ?? ""] as any;
       if (typeof value === "string") {
@@ -538,7 +549,6 @@ export function generateBackendColumnsFromValue(rows: Object[]): ColumnField[] {
           newColumn.formatter = FormatterType.text;
         }
       } else if (typeof value === "object" && value !== null) {
-        // Check if the object is a Date object
         if (
           Object.prototype.toString.call(value) === "[object Date]" ||
           value instanceof Date