docs(specTypeSchema): drop .parse() from isSpecType JSDoc

specTypeSchemas.X is typed as StandardSchemaV1, which only exposes
['~standard'].validate. The .parse() method exists at runtime (Zod) but
is not on the public type, so the parenthetical produced a TS error if
followed.

Author: felixweinberger

packages/core/src/types/specTypeSchema.ts

@@ -275,8 +275,7 @@ export const specTypeSchemas: SchemaRecord = Object.freeze(_specTypeSchemas) as
  * transforms are applied), and narrows to that input type. For schemas with `.default()` or
  * `.preprocess()`, this may accept values that do not structurally match the named output type;
  * for example `isSpecType.CallToolResult({})` is `true` because `content` has a default. Use
- * `specTypeSchemas.X['~standard'].validate(value)` (or `.parse(value)`) when you need the
- * validated output value.
+ * `specTypeSchemas.X['~standard'].validate(value)` when you need the validated output value.
  *
  * Each guard is a standalone function, so it can be passed directly as a callback.
  *