chore: improve carrier creation and documentation

[ShaddyB1]

Changes

Chore

• chore: improve carrier creation and documentation

• Updated carrier creation process to use existing carriers as templates
• Improved error handling in carrier creation script
• Updated type annotations in carrier schema files
• Cleaned up test carriers (testcarrier11, testcarrier12, testcarrier13)

Fix

• fix: documentation server network accessibility

• Added support for both local and network interfaces
• Fixed hostname detection for network access
• Added proper display of local and network URLs
• Improved error handling for server startup

Docs

• docs: enhance documentation server usability

• Added network URL display for remote access
• Improved server startup messages
• Fixed documentation path detection
• Added proper server shutdown handling

Testing Done

• Tested carrier creation with existing templates
• Verified documentation server works on both local and network interfaces
• Confirmed proper cleanup of test carriers
• Validated error handling in carrier creation process