ZeroDay Dev

- Prompt Library: the Helpful Prompts area is now the Prompt Library, with your own saved prompts pinned to the top and a dedicated My Prompts shortcut on the Home screen. - Prompt chaining: combine several prompts into one and copy them together, with a quick in-app tip so the feature is easy to find. - Build and the Rust journey: the Rust journey now has its own filter chips at the top, the catalog is cleaner, and your Build progress (tier, solved, streak) now lives in the Stats screen. - Build reminders: set custom practice reminders by time and by days of the week. - New real world exploit breakdowns: GnosisPay Delay module, Gravity Bridge, and Alephium TokenBridge, plus Zcash and Sui incidents. - New hands on labs: PGP privacy training, API security in Rust, and Linux security tracks covering filesystem permissions and systemd privilege escalation. - New Hyperliquid deep dive, smarter next best lesson recommendations, and a smoother Deep Dive flow. - Updated AI reference with a refreshed model landscape including the latest providers and models. - Fixes: lock screen widget text alignment and Deep Dive dismissal.