How does supergirl fit into dc comics continuity?

The available evidence describes the DC Universe (DCU) as a media franchise that unifies live‑action films, television, animation, and video games into a single continuity, while labeling non‑conforming adaptations as "DC Elseworlds." However, none of the cited sources detail Supergirl's placement within that continuity, whether she appears in the current DCU, the previous DCEU, or is considered an Elseworlds character. Without explicit references, the relationship between Supergirl and the broader DC Comics timeline cannot be confirmed from the given material.