refactor: standardize port to 1999 across all files

- Updated default port from 8080 to 1999 in config, Docker, and documentation files
- Modified example URLs and test commands to use new port
- Ensured consistent port references in environment configs and deployment examples
- Updated health check endpoints in Docker and testing scripts

The port change aligns with LIV Golf port allocation standards for staging environments (5000-9999 range).

README.md

@@ -26,10 +26,10 @@
 go build -o cv-server && ./cv-server
 \`\`\`
 
-Open **http://localhost:8080**
+Open **http://localhost:1999**
 
-- 🇬🇧 English: http://localhost:8080/?lang=en
-- 🇪🇸 Spanish: http://localhost:8080/?lang=es
+- 🇬🇧 English: http://localhost:1999/?lang=en
+- 🇪🇸 Spanish: http://localhost:1999/?lang=es
 
 ## 📄 Updating Your CV