feat: improve Playwright configuration and enhance error handling in CreatePRDialog

- Updated Playwright configuration to always reuse existing servers, improving test efficiency.
- Enhanced CreatePRDialog to handle null browser URLs gracefully, ensuring better user experience during PR creation failures.
- Added new unit tests for app specification format and automaker paths, improving test coverage and reliability.
- Introduced tests for file system utilities and logger functionality, ensuring robust error handling and logging behavior.
- Implemented comprehensive tests for SDK options and dev server service, enhancing overall test stability and maintainability.

apps/app/src/components/views/board-view/dialogs/create-pr-dialog.tsx

@@ -115,7 +115,7 @@ export function CreatePRDialog({
           if (!result.result.prCreated && hasBrowserUrl) {
             // If gh CLI is not available, show browser fallback UI
             if (prError === "gh_cli_not_available" || !result.result.ghCliAvailable) {
-              setBrowserUrl(result.result.browserUrl);
+              setBrowserUrl(result.result.browserUrl ?? null);
               setShowBrowserFallback(true);
               toast.success("Branch pushed", {
                 description: result.result.committed
@@ -140,7 +140,7 @@ export function CreatePRDialog({
               }
 
               // Show error but also provide browser option
-              setBrowserUrl(result.result.browserUrl);
+              setBrowserUrl(result.result.browserUrl ?? null);
               setShowBrowserFallback(true);
               toast.error("PR creation failed", {
                 description: errorMessage,