feat(ui): apply Justine ink & parchment design system

- Map Justine tokens to shadcn CSS variables (--vibn-* aliases)
- Switch fonts to Inter + Lora via next/font (IBM Plex Mono for code)
- Base typography: body Inter, h1–h3 Lora; marketing hero + wordmark serif
- Project shell and global chrome use semantic colors
- Replace Outfit/Newsreader references across TSX inline styles

Made-with: Cursor

components/project-creation/CodeImportSetup.tsx

@@ -81,7 +81,7 @@ export function CodeImportSetup({ workspace, onClose, onBack }: SetupProps) {
           width: "100%", padding: "11px 14px", marginBottom: 20,
           borderRadius: 8, border: "1px solid #e0dcd4",
           background: "#faf8f5", fontSize: "0.9rem",
-          fontFamily: "Outfit, sans-serif", color: "#1a1a1a",
+          fontFamily: "var(--font-inter), ui-sans-serif, sans-serif", color: "#1a1a1a",
           outline: "none", boxSizing: "border-box",
         }}
         onFocus={e => (e.currentTarget.style.borderColor = "#1a1a1a")}