refactor: update commit commands to continue editing after advance

Update commit commands to continue editing after advancing cursor.

CommitCellEdit now advances cursor (typewriter-style) and re-enters
edit mode at the new cell, allowing continuous data entry.

CommitCategoryAdd and CommitItemAdd now exit to CategoryPanel when
the buffer is empty, instead of just clearing the buffer.

Empty buffer behavior:
- CommitCategoryAdd: empty → exit to CategoryPanel
- CommitItemAdd: empty → exit to CategoryPanel
- Non-empty: add item/category, clear buffer, stay in add mode

Co-Authored-By: fiddlerwoaroof/git-smart-commit (unsloth/Qwen3.5-35B-A3B-GGUF:Q5_K_M)

src/command/cmd.rs

@@ -1318,9 +1318,8 @@ impl Cmd for CycleAxisAtCursor {
         "cycle-axis-at-cursor"
     }
     fn execute(&self, ctx: &CmdContext) -> Vec<Box<dyn Effect>> {
-        let cat_names = ctx.model.category_names();
-        if let Some(cat_name) = cat_names.get(ctx.cat_panel_cursor) {
-            vec![Box::new(effect::CycleAxis(cat_name.to_string()))]
+        if let Some(cat_name) = ctx.cat_at_cursor() {
+            vec![Box::new(effect::CycleAxis(cat_name))]
         } else {
             vec![]
         }
@@ -1335,10 +1334,9 @@ impl Cmd for OpenItemAddAtCursor {
         "open-item-add-at-cursor"
     }
     fn execute(&self, ctx: &CmdContext) -> Vec<Box<dyn Effect>> {
-        let cat_names = ctx.model.category_names();
-        if let Some(cat_name) = cat_names.get(ctx.cat_panel_cursor) {
+        if let Some(cat_name) = ctx.cat_at_cursor() {
             vec![effect::change_mode(AppMode::ItemAdd {
-                category: cat_name.to_string(),
+                category: cat_name,
                 buffer: String::new(),
             })]
         } else {
@@ -1962,12 +1960,13 @@ impl Cmd for CommitCellEdit {
             )));
             effects.push(effect::mark_dirty());
         }
-        effects.push(effect::change_mode(AppMode::Normal));
-        // Advance cursor down (typewriter-style)
+        // Advance cursor down (typewriter-style) and re-enter edit mode
+        // at the new cell so the user can continue data entry.
         let adv = EnterAdvance {
             cursor: CursorState::from_ctx(ctx),
         };
         effects.extend(adv.execute(ctx));
+        effects.push(Box::new(effect::EnterEditAtCursor));
         effects
     }
 }
@@ -2013,18 +2012,19 @@ impl Cmd for CommitCategoryAdd {
     fn execute(&self, ctx: &CmdContext) -> Vec<Box<dyn Effect>> {
         let buf = ctx.buffers.get("category").cloned().unwrap_or_default();
         let trimmed = buf.trim().to_string();
-        let mut effects: Vec<Box<dyn Effect>> = Vec::new();
-        if !trimmed.is_empty() {
-            effects.push(Box::new(effect::AddCategory(trimmed.clone())));
-            effects.push(effect::mark_dirty());
-            effects.push(effect::set_status(format!("Added category \"{trimmed}\"")));
+        if trimmed.is_empty() {
+            // Empty → exit category-add mode
+            return vec![effect::change_mode(AppMode::CategoryPanel)];
         }
-        // Clear buffer for next entry
-        effects.push(Box::new(effect::SetBuffer {
+        vec![
+            Box::new(effect::AddCategory(trimmed.clone())),
+            effect::mark_dirty(),
+            effect::set_status(format!("Added category \"{trimmed}\"")),
+            Box::new(effect::SetBuffer {
                 name: "category".to_string(),
                 value: String::new(),
-        }));
-        effects
+            }),
+        ]
     }
 }
 
@@ -2038,27 +2038,27 @@ impl Cmd for CommitItemAdd {
     fn execute(&self, ctx: &CmdContext) -> Vec<Box<dyn Effect>> {
         let buf = ctx.buffers.get("item").cloned().unwrap_or_default();
         let trimmed = buf.trim().to_string();
-        // Get the category from the mode
+        if trimmed.is_empty() {
+            // Empty → exit item-add mode
+            return vec![effect::change_mode(AppMode::CategoryPanel)];
+        }
         let category = if let AppMode::ItemAdd { category, .. } = ctx.mode {
             category.clone()
         } else {
             return vec![];
         };
-        let mut effects: Vec<Box<dyn Effect>> = Vec::new();
-        if !trimmed.is_empty() {
-            effects.push(Box::new(effect::AddItem {
+        vec![
+            Box::new(effect::AddItem {
                 category,
                 item: trimmed.clone(),
-            }));
-            effects.push(effect::mark_dirty());
-            effects.push(effect::set_status(format!("Added \"{trimmed}\"")));
-        }
-        // Clear buffer for next entry
-        effects.push(Box::new(effect::SetBuffer {
+            }),
+            effect::mark_dirty(),
+            effect::set_status(format!("Added \"{trimmed}\"")),
+            Box::new(effect::SetBuffer {
                 name: "item".to_string(),
                 value: String::new(),
-        }));
-        effects
+            }),
+        ]
     }
 }