v0.19.0

What's Changed

• feat: dc upgrade shortcut with doctor and TUI hints by @Canvilled in #5
• chore(homebrew): bump formula to v0.18.0 by @Canvilled in #4
• Feature/landing demo conversion 2c45 by @huypccursor in #6
• feat(site): dc-tui full-feature tour video and /play board by @Canvilled in #7
• Feature/launch marketing kit by @huypccursor in #8
• feat: stitch walkthrough clips into launch-full-demo.mp4 by @huypccursor in #9
• Feature/product hunt badge c7c3 by @huypccursor in #10
• feat: first-minute wedge and v0.19.0 by @Canvilled in #11

Full Changelog: v0.18.0...v0.19.0