feat(advanced_table): Unify Excel-style editing with VirtualAdvancedTable

- Add row_edit_buffer to AdvancedTableState
- Connect edit_buffer to rendering via drawRowsWithDataSource
- Use DRY planTabNavigation for Tab navigation + auto-commit
- Add Excel-style result fields: row_committed, row_changes, etc.
- Both widgets now share identical commit-on-row-change behavior

src/widgets/advanced_table/advanced_table.zig

@@ -193,6 +193,7 @@ pub fn advancedTableRect(
         .apply_state_colors = true,
         .draw_row_borders = true,
         .alternating_rows = config.alternating_rows,
+        .edit_buffer = &table_state.row_edit_buffer,
     }, &cell_buffer);
 
     // End clipping
@@ -704,40 +705,68 @@ fn handleKeyboard(
     }
 
     // =========================================================================
-    // Tab navigation (usando lógica del Core + config local)
+    // Tab navigation con commit Excel-style (DRY: lógica en table_core)
     // =========================================================================
     if (events.tab_out and config.handle_tab) {
-        if (events.tab_shift) {
-            // Shift+Tab: move left, wrap to previous row
-            if (table_state.selected_col > 0) {
-                table_state.selectCell(
-                    @intCast(@max(0, table_state.selected_row)),
-                    @intCast(table_state.selected_col - 1),
-                );
-                result.selection_changed = true;
-            } else if (table_state.selected_row > 0 and config.wrap_navigation) {
-                table_state.selectCell(
-                    @intCast(table_state.selected_row - 1),
-                    col_count - 1,
-                );
-                result.selection_changed = true;
+        // Wrapper para obtener row_id por índice (en AdvancedTable, usamos índice como ID)
+        const RowIdGetter = struct {
+            total: usize,
+
+            pub fn getRowId(self: @This(), row: usize) i64 {
+                // Ghost row está al final
+                if (row >= self.total) return table_core.NEW_ROW_ID;
+                return @intCast(row);
             }
-        } else {
-            // Tab: move right, wrap to next row
-            if (table_state.selected_col < @as(i32, @intCast(col_count)) - 1) {
-                table_state.selectCell(
-                    @intCast(@max(0, table_state.selected_row)),
-                    @intCast(table_state.selected_col + 1),
-                );
-                result.selection_changed = true;
-            } else if (table_state.selected_row < @as(i32, @intCast(row_count)) - 1 and config.wrap_navigation) {
-                table_state.selectCell(
-                    @intCast(table_state.selected_row + 1),
-                    0,
+        };
+
+        const getter = RowIdGetter{ .total = row_count };
+        const current_row: usize = @intCast(@max(0, table_state.selected_row));
+        const current_col: usize = @intCast(@max(0, table_state.selected_col));
+        const forward = !events.tab_shift;
+        // AdvancedTable: usar count de filas existentes (no tiene ghost row como VirtualAdvancedTable)
+        const num_rows = row_count;
+
+        const plan = table_core.planTabNavigation(
+            &table_state.row_edit_buffer,
+            current_row,
+            current_col,
+            col_count,
+            num_rows,
+            forward,
+            config.wrap_navigation,
+            getter,
+            &result.row_changes,
         );
+
+        // Ejecutar el plan
+        switch (plan.action) {
+            .move, .move_with_commit => {
+                table_state.selectCell(plan.new_row, plan.new_col);
                 result.selection_changed = true;
+
+                if (plan.action == .move_with_commit) {
+                    if (plan.commit_info) |info| {
+                        result.row_committed = true;
+                        result.row_commit_id = info.row_id;
+                        result.row_commit_is_insert = info.is_insert;
+                        result.row_changes_count = info.change_count;
                     }
                 }
+            },
+            .exit, .exit_with_commit => {
+                result.tab_out = true;
+                result.tab_shift = events.tab_shift;
+
+                if (plan.action == .exit_with_commit) {
+                    if (plan.commit_info) |info| {
+                        result.row_committed = true;
+                        result.row_commit_id = info.row_id;
+                        result.row_commit_is_insert = info.is_insert;
+                        result.row_changes_count = info.change_count;
+                    }
+                }
+            },
+        }
     }
 
     // =========================================================================

src/widgets/advanced_table/state.zig

@@ -96,6 +96,9 @@ pub const AdvancedTableState = struct {
     /// Estado de edición embebido (Fase 2 refactor)
     cell_edit: table_core.CellEditState = .{},
 
+    /// Buffer de edición de fila Excel-style (acumula cambios antes de commit)
+    row_edit_buffer: table_core.RowEditBuffer = .{},
+
     /// Original value before editing (for revert on Escape)
     /// NOTA: Mantenemos esto porque CellValue es más rico que buffer crudo
     original_value: ?CellValue = null,
@@ -1016,6 +1019,36 @@ pub const AdvancedTableResult = struct {
 
     // Focus
     clicked: bool = false,
+
+    // =========================================================================
+    // Edición CRUD Excel-style (simétrico con VirtualAdvancedTableResult)
+    // =========================================================================
+
+    /// Una fila fue completada (el usuario cambió de fila, tenía cambios pendientes)
+    row_committed: bool = false,
+
+    /// ID de la fila que se hizo commit (índice en AdvancedTable)
+    row_commit_id: i64 = table_core.NEW_ROW_ID,
+
+    /// Es un INSERT (ghost row) o UPDATE (fila existente)
+    row_commit_is_insert: bool = false,
+
+    /// Cambios de la fila (válidos si row_committed = true)
+    row_changes: [table_core.MAX_PENDING_COLUMNS]table_core.PendingCellChange = undefined,
+
+    /// Número de cambios en row_changes
+    row_changes_count: usize = 0,
+
+    /// Tab presionado para salir del widget
+    tab_out: bool = false,
+
+    /// Shift estaba presionado con Tab
+    tab_shift: bool = false,
+
+    /// Obtiene los cambios como slice
+    pub fn getRowChanges(self: *const AdvancedTableResult) []const table_core.PendingCellChange {
+        return self.row_changes[0..self.row_changes_count];
+    }
 };
 
 // =============================================================================