chore: Fix trailing whitespace across project files

Automated fix from pre-commit hooks (trailing-whitespace, end-of-file-fixer).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

ARTICLE-gitea-deployment.md

@@ -1,7 +1,7 @@
 # Deploying Gitea with 1Password Secrets Management and Caddy on Bigbox
 
-**Date:** February 16, 2026  
-**Author:** Infrastructure Team  
+**Date:** February 16, 2026
+**Author:** Infrastructure Team
 **Tags:** gitea, 1password, caddy, docker, tailscale, devops
 
 ## Executive Summary
@@ -200,13 +200,13 @@ services:
   db:
     networks:
       - gitea  # No external ports
-  
+
   master:
     # No ports exposed - internal only
-  
+
   volume:
     # No ports exposed - internal only
-  
+
   filer:
     # No ports exposed - internal only
 ```