fix: Add nixpacks configuration for Astro deployment

dealplustech-astro/node_modules/zod/v4/mini/coerce.js

@@ -0,0 +1,17 @@
+import * as core from "../core/index.js";
+import * as schemas from "./schemas.js";
+export function string(params) {
+    return core._coercedString(schemas.ZodMiniString, params);
+}
+export function number(params) {
+    return core._coercedNumber(schemas.ZodMiniNumber, params);
+}
+export function boolean(params) {
+    return core._coercedBoolean(schemas.ZodMiniBoolean, params);
+}
+export function bigint(params) {
+    return core._coercedBigint(schemas.ZodMiniBigInt, params);
+}
+export function date(params) {
+    return core._coercedDate(schemas.ZodMiniDate, params);
+}