feat: refactor AI engine logic, remove cross-engine fallback, add retry with backoff, and bump version to 2.80.18

src/extension.ts

@@ -90,6 +90,14 @@ export function deactivate() {
 }
 
 async function runInitialSetup(context: vscode.ExtensionContext) {
+    // 이미 사용자가 URL을 설정했다면 자동 감지를 스킵
+    const existingUrl = vscode.workspace.getConfiguration('g1nation').get<string>('ollamaUrl');
+    if (existingUrl && existingUrl.trim()) {
+        context.globalState.update('setupComplete', true);
+        logInfo('Initial setup skipped: ollamaUrl already configured.', { existingUrl });
+        return;
+    }
+
     try {
         let engineName = '';
         let modelName = '';