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

app/[workspace]/project/[projectId]/infrastructure/page.tsx

@@ -285,7 +285,7 @@ function InfrastructurePageInner() {
   };
 
   return (
-    <div style={{ display: "flex", height: "100%", fontFamily: "Outfit, sans-serif", overflow: "hidden" }}>
+    <div style={{ display: "flex", height: "100%", fontFamily: "var(--font-inter), ui-sans-serif, sans-serif", overflow: "hidden" }}>
 
       {/* ── Left sub-nav ── */}
       <div style={{
@@ -346,7 +346,7 @@ function InfrastructurePageInner() {
 
 export default function InfrastructurePage() {
   return (
-    <Suspense fallback={<div style={{ display: "flex", height: "100%", alignItems: "center", justifyContent: "center", color: "#a09a90", fontFamily: "Outfit, sans-serif", fontSize: "0.85rem" }}>Loading…</div>}>
+    <Suspense fallback={<div style={{ display: "flex", height: "100%", alignItems: "center", justifyContent: "center", color: "#a09a90", fontFamily: "var(--font-inter), ui-sans-serif, sans-serif", fontSize: "0.85rem" }}>Loading…</div>}>
       <InfrastructurePageInner />
     </Suspense>
   );