Add Martin Knops author profile and Watchdog plugin

Author: MKWebDesign

content/authors/avatars/martin-knops.jpg

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+---
+name: Martin Knops
+slug: martin-knops
+github_url: https://github.com/MKWebDesign
+
+---
+
+I am Martin Knops, a freelance PHP developer and founder of MKWebDesign.nl. With years of experience in Laravel and FilamentPHP, I build custom solutions for clients with a strong focus on quality, security, and ease of use.  
+
+Feel free to reach out on GitHub if you have any questions or suggestions!

content/authors/martin-knops.md

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+---
+name: Watchdog
+slug: mkwebdesign-filament-watchdog
+author_slug: martin-knops
+categories: [developer-tool]
+description: Advanced security monitoring and intrusion detection for Filament applications.
+docs_url: https://raw.githubusercontent.com/MKWebDesign/filament-watchdog/main/README.md
+github_repository: MKWebDesign/filament-watchdog
+has_dark_theme: true
+has_translations: false
+versions: [3]
+publish_date: 2025-07-20
+---