v0.4.0

Add SSL/TLS detail tab in TUI with improved metadata handling

- Introduced a dedicated `SSL/TLS` tab for displaying TLS metadata in the detail view.
- Enhanced `DetailPane` implementation to support dynamic tab visibility and new content types.
- Refactored tab enums (`DetailPrimaryTab`, etc.) for clarity and expanded usage.
- Added better formatting for TLS details using JSON-based structures within requests and responses.
- Updated proxy implementation to generate and store `ssl_tls.json`.