v1.2.0

Changelog

• d04d191: feat(cli): wire --ports port scan into single-target and bulk modes (@skhell)
• d381316: feat(configtui): redesign as tabbed layout with per-tab cursor memory (@skhell)
• 00b7f40: feat(configtui): show version and repo link in header (@skhell)
• 2af95e2: feat(iana): on-demand auto-download of IANA csv list (@skhell)
• b726078: feat(portscan): add TCP connect port scanner package (@skhell)
• f4a345d: feat: wire port scan into CLI with config keys, CSV export, and progress spinner (@skhell)