- Replace deprecated 'sse' type with 'http' (as per Claude Code official docs)
- Add HTTP-specific fields: url (required) and headers (optional)
- Implement dynamic UI: show different fields based on selected type
- Improve args input: support multi-line input (one argument per line)
- Add headers parsing supporting both 'KEY: VALUE' and 'KEY=VALUE' formats
- Update backend validation to enforce type-specific required fields
- Update i18n translations (zh/en) with new HTTP-related labels