fix: type errors

Author: cardoso

packages/@lwc/ssr-compiler/src/compile-js/decorators/api/validate.ts

@@ -7,10 +7,10 @@
 
 import { DecoratorErrors } from '@lwc/errors';
 import { DISALLOWED_PROP_SET, AMBIGUOUS_PROP_SET } from '@lwc/shared';
+import { is } from 'estree-toolkit';
 import { generateError } from '../../errors';
 import { type ComponentMetaState } from '../../types';
 import type { Identifier, MethodDefinition, PropertyDefinition } from 'estree';
-
 export type ApiMethodDefinition = MethodDefinition & {
     key: Identifier;
 };

packages/@lwc/ssr-compiler/src/compile-js/index.ts

@@ -274,5 +274,5 @@ export default function compileJS(
 function isKeyIdentifier<T extends EsPropertyDefinition | EsMethodDefinition>(
     node: T | undefined | null
 ): node is T & { key: Identifier } {
-    return is.identifier(node.key);
+    return is.identifier(node?.key);
 }