v0.1.9 alpha

What's Changed

• fix: refresh readme quickstart by @Dhruv2mars in #42
• feat: landing page redesign — navbar, dropdowns, mobile, stub pages, favicon by @Dhruv2mars in #43
• [codex] refactor: remove tui and dead scaffold by @Dhruv2mars in #44
• feat: move local web ui to webui route by @Dhruv2mars in #45
• feat: configure agent skills by @Dhruv2mars in #46
• feat: refine product language by @Dhruv2mars in #47
• fix: align product contract issues by @Dhruv2mars in #57
• fix: prepare public release by @Dhruv2mars in #58

Full Changelog: v0.1.8...v0.1.9