The Mets have been without a healthy Kodai Senga for all of about 24 hours this season. But they may be about to get their top pitcher back at the very most opportune time. Senga took the final step toward returning from his high-grade left calf strain Saturday night at Triple-A Syracuse, where he worked a clean first inning of the team’s 10-3 win over Charlotte at NBT Bank Stadium. Senga struck out a pair and walked a batter during his lone inning of work, throwing 15 total pitches and topping out at 94.9 mph.