Database Articles Check

Issue Summary:

You're getting "Unexpected end of JSON input" error when trying to edit articles in news_management.php. This usually means:

No articles exist in the database with the requested ID
The JSON response is malformed or empty
There's a PHP error preventing proper JSON output

Fixes Applied:

✅ Fixed database collation issues (utf8mb4_unicode_ci)
✅ Updated config.php with proper charset settings
✅ Added output buffering fixes to news_management.php
✅ Enhanced JSON encoding with UTF-8 support