fix: [CDE-540]: Adding a check for user name and email during code clone operation. (#3596)

### Description

This PR introduces two changes
1. Adding a check for user's name and email before cloning the code
inside the gitspace container. This will non-block non-harness repos.
2. Adding an explicit check for the media folder's path during VSCode
web setup.

---------

app/gitspace/orchestrator/git/git_impl.go

@@ -92,15 +92,17 @@ func (g *ServiceImpl) CloneCode(
 			"failed to parse clone url %s: %w", resolvedRepoDetails.CloneURL, err)
 	}
 	cloneURL.User = nil
-	script, err := template.GenerateScriptFromTemplate(
-		templateCloneCode, &template.CloneCodePayload{
+	templatePayload := template.CloneCodePayload{
 		RepoURL:  cloneURL.String(),
 		Image:    defaultBaseImage,
 		Branch:   resolvedRepoDetails.Branch,
 		RepoName: resolvedRepoDetails.RepoName,
-			Email:    resolvedRepoDetails.Credentials.Email,
-			Name:     resolvedRepoDetails.Credentials.Name,
-		})
+	}
+	if resolvedRepoDetails.Credentials != nil {
+		templatePayload.Email = resolvedRepoDetails.Credentials.Email
+		templatePayload.Name = resolvedRepoDetails.Credentials.Name
+	}
+	script, err := template.GenerateScriptFromTemplate(templateCloneCode, &templatePayload)
 	if err != nil {
 		return nil, fmt.Errorf(
 			"failed to generate scipt to clone code from template %s: %w", templateCloneCode, err)

app/gitspace/orchestrator/ide/vscodeweb.go

@@ -82,6 +82,10 @@ func (v *VSCodeWeb) Setup(ctx context.Context, exec *devcontainer.Exec) ([]byte,
 	}
 
 	mediaFolderPath := path[startIndex+len(startMarker) : endIndex]
+	if len(mediaFolderPath) == 0 {
+		return nil, fmt.Errorf("media folder path should not be empty, VSCode web is not installed")
+	}
+
 	err = v.copyMediaToContainer(ctx, exec, mediaFolderPath)
 	if err != nil {
 		return nil, fmt.Errorf("failed to copy media folder to container at path %s: %w", mediaFolderPath, err)