fix: detect internal install errors and drop stale Cursor status mapping

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: njb90

src/commands/configureAiTools.ts

@@ -106,7 +106,6 @@ function registerConfigureAiTools(context: vscode.ExtensionContext): void {
 
         const platformForStatus: Record<string, import("../aiToolsService").PlatformId | undefined> = {
           "Claude Code": "claude-code",
-          "Cursor": "universal",       // Cursor's new canonical path is .agents/skills/
           "VS Code (Copilot)": "vscode-copilot",
         };
         const pid = platformForStatus[ideTarget.label];

src/webview/homescreenView.ts

@@ -825,6 +825,7 @@ export class HomescreenViewProvider implements vscode.WebviewViewProvider {
       const createdFiles: string[] = [];
       let anyError = false;
       for (const platform of platforms) {
+        const errsBefore = errors.length;
         try {
           if (platform === "claude-code") {
             await installForClaudeCode(rootUri, dirName, content, createdFiles, errors);
@@ -839,6 +840,9 @@ export class HomescreenViewProvider implements vscode.WebviewViewProvider {
           errors.push(`${dirName} (${platform}): ${err.message}`);
           anyError = true;
         }
+        if (errors.length > errsBefore) {
+          anyError = true;
+        }
       }
       view.webview.postMessage({
         command: "aiToolsProgress",