fix(ls): address final PR #5104 review comments

Remove redundant toValue() calls in allowedFields linter function where
parentKey is already extracted. Rename test fixture to follow standard
naming convention without -invalid suffix.

Changes:
- Optimize linter-functions.ts line 244 to use parentKey directly
- Rename operation-reply-fields-types-3-0-invalid.yaml to match pattern
- Update test reference in operation-reply.ts

Fixes remaining issues from PR #5104 comments 37, 39, 43, 45, 46.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: robert-hebel-sb

packages/apidom-ls/src/services/validation/linter-functions.ts

@@ -241,8 +241,8 @@ export const standardLinterfunctions: FunctionItem[] = [
               const included = keys.includes(parentKey);
               const isExtension =
                 allowExtensionPrefix !== undefined &&
-                typeof toValue(parentKey) === 'string' &&
-                toValue(parentKey as Element).startsWith(allowExtensionPrefix);
+                typeof parentKey === 'string' &&
+                parentKey.startsWith(allowExtensionPrefix);
               return !included && (allowExtensionPrefix === undefined || !isExtension);
             },
             {

packages/apidom-ls/test/fixtures/validation/asyncapi/operation-reply-fields-types-3-0-invalid.yaml

@@ -11,17 +11,9 @@ operations:
     channel:
       $ref: '#/channels/testChannel'
     reply:
-      # Valid - address is an object
-      address:
-        location: $message.header#/replyTo
-      # Valid - channel is a reference
-      channel:
-        $ref: '#/channels/testChannel'
-      # Valid - messages is an array
-      messages:
-        - $ref: '#/components/messages/testMessage'
-components:
-  messages:
-    testMessage:
-      payload:
-        type: object
+      # Invalid - address should be an Operation Reply Address Object or Reference, not a string
+      address: invalid_string
+      # Invalid - channel should be a Reference Object or Channel Object, not a number
+      channel: 123
+      # Invalid - messages should be an array, not a string
+      messages: invalid_string

packages/apidom-ls/test/fixtures/validation/asyncapi/operation-reply-fields-types-3-0.yaml

@@ -23,7 +23,7 @@ const specOperationReplyFieldsTypesInvalid = fs
       'fixtures',
       'validation',
       'asyncapi',
-      'operation-reply-fields-types-3-0-invalid.yaml',
+      'operation-reply-fields-types-3-0.yaml',
     ),
   )
   .toString();