unavailable links in red

cli.py

@@ -45,7 +45,10 @@ class WikiRunCLI:
         # Add links to table (3 per row)
         row = []
         for i, link in enumerate(links):
-            row.append(f"{i+1}. {link}")
+            # Check if link is available in the current article
+            is_available = link in self.env.wiki_data
+            color = "green" if is_available else "red"
+            row.append(f"[{color}]{i+1}. {link}[/{color}]")
             if len(row) == 3:
                 table.add_row(*row)
                 row = []