Add stability hardening and self-heal recovery

audit/cmd/bee/main.go

@@ -7,6 +7,7 @@ import (
 	"io"
 	"log/slog"
 	"os"
+	"runtime/debug"
 	"strings"
 
 	"bee/audit/internal/app"
@@ -29,10 +30,21 @@ func main() {
 	os.Exit(run(os.Args[1:], os.Stdout, os.Stderr))
 }
 
-func run(args []string, stdout, stderr io.Writer) int {
+func run(args []string, stdout, stderr io.Writer) (exitCode int) {
 	slog.SetDefault(slog.New(slog.NewTextHandler(os.Stderr, &slog.HandlerOptions{
 		Level: slog.LevelInfo,
 	})))
+	defer func() {
+		rec := recover()
+		if rec == nil {
+			return
+		}
+		slog.Error("fatal panic",
+			"panic", fmt.Sprint(rec),
+			"stack", string(debug.Stack()),
+		)
+		exitCode = 1
+	}()
 
 	if len(args) == 0 {
 		printRootUsage(stderr)