breadhelp 0.2.0: live guided tour overlay replacing static onboarding

Replaces the old in-window onboarding wizard with a real screen-wide
tour: dim + spotlight cutout around the actual on-screen component
(breadbar, breadbox), floating callout teaching the shortcut, and
event-driven confirmation via real Hyprland/breadd signals instead of
click-through fakery.

src/content/mod.rs

@@ -8,6 +8,7 @@
 pub mod keybinds;
 pub mod markdown;
 pub mod meta;
+pub mod tour;
 pub mod troubleshoot;
 
 use std::collections::BTreeMap;