SEATTLE — On a day when the energy hovered between low and “I’ve felt better in my life” and their eyes felt a little fuzzy from minimal sleep and maximum celebration, the Mariners rolled out a lineup similar to a mid-March Cactus League road game for Saturday afternoon. But playing in front of another packed T-Mobile Park and knowing there is still a chance to earn the first wild-card spot and get a home series in their first postseason in 21 years, the Mariners pushed through any fatigue — mental, physical, emotional or potable — and picked up a 5-1 victory over the Oakland A’s. “This is one…