feat(base-formula): add date and coercion functions, wire registry

apps/server/src/core/base/formula/__tests__/eval.spec.ts

@@ -45,8 +45,7 @@ describe("evaluate", () => {
   });
 });
 
-// TODO: unskip after Task 15 wires the function registry with round/concat.
-describe.skip("evaluate with registered functions", () => {
+describe("evaluate with registered functions", () => {
   it("invokes registered functions", () => {
     expect(run('round(1.6)', {})).toBe(2);
     expect(run('concat("a", "b", "c")', {})).toBe("abc");

apps/server/src/core/base/formula/__tests__/typecheck.spec.ts

@@ -1,4 +1,3 @@
-// TODO: unskip after Task 15 lands date functions and populates the registry.
 import { parseRaw, resolve, typecheck, registry } from "@docmost/base-formula/server";
 import type { FormulaAST } from "@docmost/base-formula/server";
 
@@ -9,7 +8,7 @@ const mk = (src: string, propTypes: Record<string, "number" | "string" | "boolea
   return { ast: resolved.ast, typeMap };
 };
 
-describe.skip("typecheck", () => {
+describe("typecheck", () => {
   it("infers number for arithmetic", () => {
     const { ast, typeMap } = mk('prop("Price") * 2', { Price: "number" });
     expect(typecheck(ast, typeMap, registry).resultType).toBe("number");