Springtail (probable)

Damp soil, leaf litter, and other humid places; indoors they may gather near moisture.

Mostly fungi, algae, decaying plant matter, and microbes.

Tiny, wingless animals that often occur in groups; many species can jump using a spring-like tail appendage.

Harmless to people and pets, and helpful in decomposition and soil nutrient cycling. The image is too close and indistinct for a confident identification.