Windsurf becomes Devin Desktop; Cascade retires

Cognition folds the editor into the Devin brand via an over-the-air update: the default view is now an Agent Command Center, Cascade reaches end-of-life July 1, and a Rust-rewritten Devin Local (~30% more token-efficient) replaces it. The rebrand also ships the open Agent Client Protocol, letting rival agents run first-class in the IDE.