Merge branch 'main' into worktree-improvise-ewi-formula-crate

# Conflicts:
#	src/ui/app.rs
#	src/ui/effect.rs
#	src/view/layout.rs

src/command/cmd/core.rs

@@ -41,8 +41,8 @@ pub struct CmdContext<'a> {
     /// Named text buffers
     pub buffers: &'a HashMap<String, String>,
     /// View navigation stacks (for drill back/forward)
-    pub view_back_stack: &'a [String],
-    pub view_forward_stack: &'a [String],
+    pub view_back_stack: &'a [crate::ui::app::ViewFrame],
+    pub view_forward_stack: &'a [crate::ui::app::ViewFrame],
     /// Whether the app currently has an active drill snapshot.
     pub has_drill_state: bool,
     /// Display value at the cursor — works uniformly for pivot and records mode.