fix(design-system): guard missing registry components

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Made-with: Cursor

apps/design-system/lib/rehype-component.ts

@@ -55,6 +55,9 @@ export function rehypeComponent() {
               src = srcPath
             } else {
               const component = Index[style.name][name]
+              if (!component) {
+                continue
+              }
               // console.log('got to ELSE STATEMENT')
               // console.log('filename', fileName)
               // console.log('name', name)
@@ -124,6 +127,9 @@ export function rehypeComponent() {
         try {
           for (const style of styles) {
             const component = Index[style.name][name]
+            if (!component) {
+              continue
+            }
             // console.log('GOT HERE')
             const src = component.files[0]
 
@@ -176,6 +182,9 @@ export function rehypeComponent() {
         try {
           for (const style of styles) {
             const component = Index[style.name][name]
+            if (!component) {
+              continue
+            }
             // console.log('GOT HERE')
             const src = component.files[0]