Handle edgecase in is_atty

src/bun.js/event_loop.zig

@@ -1279,6 +1279,9 @@ pub const EventLoop = struct {
             }
         } else {
             loop.tickWithoutIdle();
+            if (comptime Environment.isDebug) {
+                log("tickWithoutIdle", .{});
+            }
         }
 
         this.flushImmediateQueue();

src/bun.js/rare_data.zig

@@ -350,7 +350,7 @@ pub fn stdin(rare: *RareData) *Blob.Store {
                     .pathlike = .{
                         .fd = fd,
                     },
-                    .is_atty = std.os.isatty(bun.STDIN_FD.cast()),
+                    .is_atty = if (bun.STDIN_FD.isValid()) std.os.isatty(bun.STDIN_FD.cast()) else false,
                     .mode = mode,
                 },
             },