Print "No files found" in sys.find so LLM can handle empty case better

Author: ibuildthecloud

pkg/builtin/builtin.go

@@ -216,6 +216,10 @@ func SysFind(ctx context.Context, env []string, input string) (string, error) {
 	if err != nil {
 		return "", nil
 	}
+	if len(result) == 0 {
+		return "No files found", nil
+	}
+
 	sort.Strings(result)
 	return strings.Join(result, "\n"), nil
 }

pkg/loader/github/github.go

@@ -40,7 +40,7 @@ func getCommit(account, repo, ref string) (string, error) {
 		SHA string `json:"sha,omitempty"`
 	}
 	if err := json.NewDecoder(resp.Body).Decode(&commit); err != nil {
-		return "", fmt.Errorf("failed to decode GitHub commit of %s/%s at %s: %w", err)
+		return "", fmt.Errorf("failed to decode GitHub commit of %s/%s at %s: %w", account, repo, url, err)
 	}
 
 	if commit.SHA == "" {