constrain schema in HttpApiSchema.param

Author: tim-smart

packages/platform/src/HttpApiSchema.ts

@@ -186,11 +186,11 @@ export interface Param<Name extends string, S extends Schema.Schema.Any>
  * @category path params
  */
 export const param: {
-  <Name extends string>(name: Name): <S extends Schema.Schema.Any>(schema: S) => Param<Name, S>
-  <Name extends string, S extends Schema.Schema.Any>(name: Name, schema: S): Param<Name, S>
+  <Name extends string>(name: Name): <S extends AnyString>(schema: S) => Param<Name, S>
+  <Name extends string, S extends AnyString>(name: Name, schema: S): Param<Name, S>
 } = dual(
   2,
-  <Name extends string, S extends Schema.Schema.Any>(name: Name, schema: S): Param<Name, S> =>
+  <Name extends string, S extends AnyString>(name: Name, schema: S): Param<Name, S> =>
     schema.annotations({ [AnnotationParam]: name }) as any
 )