Fix: uploaded PDF/DOC/TXT files not displayed in entries single view

[saurab018]

All Submissions:

• Have you followed the Everest Forms Contributing guideline?
• Does your code follow the WordPress' coding standards?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Changes proposed in this Pull Request:

Fixes a bug where uploaded files (PDF, DOC, TXT, ZIP, etc.) upload successfully and appear in notification emails, but are not visible in the WordPress admin entry single view.

Root cause: The entry-single view template passes $meta_key to the everest_forms_html_field_value filter but the filter was registered to accept only 4 arguments, so the meta key was never received by the upload class. Without it, html_field_value() fell back to array_search( $val, $form_data, true ) with strict comparison, which silently returned false when esc_html() had altered the file URL — causing all files to be skipped and the field to render blank.

• Pass $meta_key as 5th argument to everest_forms_html_field_value filter in the entry-single view template
• Increase add_filter accepted args from 4 to 5 in class-evf-form-fields-upload.php
• Add $field_meta_key as 5th parameter to html_field_value() and use it directly for meta key resolution in entry-single context
• Add missing continue after setting empty $output[$meta_key] to prevent a string/array type conflict on subsequent loop iterations

Closes # .

How to test the changes in this Pull Request:

1. Create a form with a file-upload field and submit an entry with a PDF, DOC, or TXT file
2. Go to WP Admin → Everest Forms → Entries → open the entry single view
3. Verify the uploaded file displays as a clickable link with the filename
4. Verify email notifications still display the file correctly
5. Verify the entry table list view still displays files correctly

Types of changes:

• Bug fix (non-breaking change which fixes an issue)
• Enhancement (modification of the currently available functionality)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Other information:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you successfully ran tests with your changes locally?
• Have you updated the documentation accordingly?

Changelog entry

Fix: Uploaded files (PDF, DOC, TXT, etc.) not displaying in the entry single view in WP admin due to fragile meta key resolution via strict array_search comparison.