Bruno v4.0.0: Native AI, Typed Variables, and Apps

Bruno v4.0.0 is here. Most of what’s in it comes straight from the papercuts Bruno users know well: string-typed variables you have to parse by hand, secrets bolted on beside your environments, docs that are hard to share, and a slow cold start on big collections. We fixed those at the foundation and added a few genuinely new capabilities on top, including native AI and Apps.