Simplify URL detection: only check first arg after 'index'

Remove argument reordering logic. URL must now appear immediately
after 'index', consistent with how other subcommands work:

  ctxc index https://github.com/owner/repo -i name   ✓
  ctxc index -i name https://github.com/owner/repo   ✗ (error)

This is more predictable and matches CLI conventions.

Author: richhankins

src/bin/index.ts

@@ -30,23 +30,13 @@ program.addCommand(mcpCommand);
 program.addCommand(agentCommand);
 
 // Auto-detect URL mode: ctxc index <url> -> ctxc index url <url>
-// Scan for URL anywhere after 'index' to support: ctxc index -i name https://...
+// URL must be the first argument after 'index' (like any subcommand)
 const indexIdx = process.argv.indexOf("index");
-if (indexIdx !== -1) {
-  const subcommands = ["url", "github", "gitlab", "bitbucket", "website"];
-  // Find first URL-like argument after 'index'
-  for (let i = indexIdx + 1; i < process.argv.length; i++) {
-    const arg = process.argv[i];
-    // Stop if we hit a known subcommand
-    if (subcommands.includes(arg)) break;
-    // Found a URL - reorder args to put 'url' and the URL right after 'index'
-    if (arg.match(/^https?:\/\//)) {
-      // Remove the URL from its current position
-      process.argv.splice(i, 1);
-      // Insert 'url' <url> right after 'index'
-      process.argv.splice(indexIdx + 1, 0, "url", arg);
-      break;
-    }
+if (indexIdx !== -1 && indexIdx + 1 < process.argv.length) {
+  const nextArg = process.argv[indexIdx + 1];
+  if (nextArg.match(/^https?:\/\//)) {
+    // Insert 'url' before the URL
+    process.argv.splice(indexIdx + 1, 0, "url");
   }
 }