feat(ee): bases

Table and kanban UI, formula engine package, and the base-embed editor extension

packages/base-formula/src/functions/coercion.ts

@@ -0,0 +1,16 @@
+import { register } from "./registry";
+
+register({
+  name: "toNumber", arity: { min: 1, max: 1 }, paramTypes: "any", returnType: "number",
+  eval: ([v]) => {
+    if (v == null) return null;
+    const n = Number(v);
+    return Number.isFinite(n) ? n : null;
+  },
+  doc: "Parses the value as a number, or null.", category: "coercion",
+});
+register({
+  name: "toString", arity: { min: 1, max: 1 }, paramTypes: "any", returnType: "string",
+  eval: ([v]) => v == null ? "" : String(v),
+  doc: "Converts the value to a string.", category: "coercion",
+});