Use exclude when calling loadDocuments

[mattietea]

Description

It seems loadDocument and loadDocumentSync reference don't account for the project's exclude property resulting in unnecessary files getting loaded into memory.

Fixes #1748

Type of change

• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Screenshots/Sandbox (if appropriate/relevant):

Reproduction PR

How Has This Been Tested?

Added tests to the PR

Test Environment:

• OS: MacOS 26.0.1
• GraphQL Config Version: 5.1.5
• NodeJS: v24.9.0

Checklist:

• I have followed the CONTRIBUTING doc and the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests and linter rules pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

Further comments

If this is a relatively large or complex change, kick off the discussion by explaining why you chose the solution you did and what alternatives you considered, etc...

• I kept support for ignore, as I'm not sure how widely used ignore is. Another alternative could be to rename ignore to exclude?
• I noticed this error when using the eslint-graphql plugin. let me know if this isn't the right place to fix this!

[mattietea]

Opted to make ignore override exclude incase people are already using ignore. A couple other options,

• Merge ignore and exclude
• Rename ignore to exclude
  • If exclude is passed as an option, should that be merged with this.exclude?