fix: multiple bugfixes

- Fix data race: use atomic.Bool for running in server.go
- Fix busy loop in timer.go: use time.After when idle
- Fix division by zero in print_replay
- Fix silently swallowed errors in proto_generator
- Fix suppressed error in native_encoder
- Delete unused registry_data_hunter

mc/proto_generator/native_encoder.go

@@ -87,6 +87,7 @@ func ArrayEncoder(g *Generator, varToSet ast.Expr, dataRaw any, name string) (s
 	}
 	s2, err := g.VisitEncoder(Index(varToSet, Ident(iName)), data.Type, name+"Inner")
 	if err != nil {
+		return
 	}
 	s2 = Stmts(ForRange(Ident(iName), Call(Ident("len"), varToSet), NewBlock(s2)))
 	s = append(s1, s2...)