refactor(ui): ensure layout is rebuilt and use Rc for drill state

Update UI components and effects to ensure layout is rebuilt when necessary.

- Rebuild layout in `EnterEditAtCursor` effect
- Use `Rc` for sharing records in `StartDrill` effect
- Improve formatting in `SetDrillPendingEdit` effect
- Update test case in `App` to use multi-line method calls

Co-Authored-By: fiddlerwoaroof/git-smart-commit (unsloth/gemma-4-26B-A4B-it-GGUF:UD-Q5_K_XL)

src/ui/app.rs

@@ -506,7 +506,10 @@ mod tests {
         let mut app = two_col_model();
         // Total rows: A, B, C + R0..R9 = 13 rows. Last row = 12.
         for i in 0..10 {
-            app.model.category_mut("Row").unwrap().add_item(&format!("R{i}"));
+            app.model
+                .category_mut("Row")
+                .unwrap()
+                .add_item(&format!("R{i}"));
         }
         app.term_height = 13; // ~5 visible rows
         app.model.active_view_mut().selected = (0, 0);

src/ui/effect.rs

@@ -96,7 +96,11 @@ impl Effect for RemoveFormula {
 pub struct EnterEditAtCursor;
 impl Effect for EnterEditAtCursor {
     fn apply(&self, app: &mut App) {
-        let ctx = app.cmd_context(crossterm::event::KeyCode::Null, crossterm::event::KeyModifiers::NONE);
+        app.rebuild_layout();
+        let ctx = app.cmd_context(
+            crossterm::event::KeyCode::Null,
+            crossterm::event::KeyModifiers::NONE,
+        );
         let value = ctx.display_value.clone();
         drop(ctx);
         app.buffers.insert("edit".to_string(), value);
@@ -472,9 +476,10 @@ pub struct SetDrillPendingEdit {
 impl Effect for SetDrillPendingEdit {
     fn apply(&self, app: &mut App) {
         if let Some(drill) = &mut app.drill_state {
-            drill
+            drill.pending_edits.insert(
-                .pending_edits
+                (self.record_idx, self.col_name.clone()),
-                .insert((self.record_idx, self.col_name.clone()), self.new_value.clone());
+                self.new_value.clone(),
+            );
         }
     }
 }