Fix script slug matching to prevent false positives

- Remove normalized slug/name matching fallback that caused false matches
- Use exact slug-to-slug matching as primary method
- Only use install basename matching for edge cases
- Prevents 'docker-vm' from appearing when only 'docker' is downloaded

src/app/_components/DownloadedScriptsTab.tsx

@@ -185,13 +185,19 @@ export function DownloadedScriptsTab({ onInstallScript }: DownloadedScriptsTabPr
         // Check if there's a corresponding local script
         const hasLocalVersion = localScriptsData?.scripts?.some(local => {
           if (!local?.name) return false;
+          
+          // Primary: Exact slug-to-slug matching (most reliable, prevents false positives)
+          if (local.slug && script.slug) {
+            if (local.slug.toLowerCase() === script.slug.toLowerCase()) {
+              return true;
+            }
+          }
+          
+          // Secondary: Check install basenames (for edge cases where install script names differ from slugs)
+          // Only use normalized matching for install basenames, not for slug/name matching
           const normalizedLocal = normalizeId(local.name);
-          const matchesNameOrSlug = (
-            normalizedLocal === normalizeId(script.name) ||
-            normalizedLocal === normalizeId(script.slug)
-          );
           const matchesInstallBasename = (script as any)?.install_basenames?.some((base: string) => normalizeId(base) === normalizedLocal) ?? false;
-          return matchesNameOrSlug || matchesInstallBasename;
+          return matchesInstallBasename;
         }) ?? false;
         
         return {