Fix TypeScript errors

Fixes TypeScript errors related to missing exports and incorrect function arguments.

src/lib/supabase/tests/index.ts

@@ -38,13 +38,13 @@ export const testSupabaseConnection = async (): Promise<TestResults> => {
     results.database = dbResults.success;
 
     // 오류 수집
-    if (!authResults.success) {
+    if (!authResults.success && authResults.error) {
       results.errors.push(`인증 테스트 실패: ${authResults.error}`);
     }
-    if (!apiResults.success) {
+    if (!apiResults.success && apiResults.error) {
       results.errors.push(`REST API 테스트 실패: ${apiResults.error}`);
     }
-    if (!dbResults.success) {
+    if (!dbResults.success && dbResults.error) {
       results.errors.push(`DB 테스트 실패: ${dbResults.error}`);
     }
   } catch (error: any) {