chore: update version to 0.2.9; enhance changelog and fix highlighting logic

Author: heckmon

CHANGELOG.md

@@ -117,4 +117,8 @@
 ## 0.2.8
 
 * Fix: Large files crash
-* Enhancement: Batched highlighting
+* Enhancement: Batched highlighting
+
+## 0.2.9
+
+* Fix: Removed grapheme characters

lib/code_crafter/code_crafter_controller.dart

@@ -377,10 +377,7 @@ class CodeCrafterController extends TextEditingController {
         for (int lineIdx = 0; lineIdx < nodeLines.length; lineIdx++) {
           final line = nodeLines[lineIdx];
           final startOfLineOffset = offset;
-          final lineChars = line.characters;
-          offset +=
-              lineChars.length + (lineIdx == nodeLines.length - 1 ? 0 : 1);
-
+          offset += line.length + (lineIdx == nodeLines.length - 1 ? 0 : 1);
           final match = RegExp(r'^(\s*)').firstMatch(line);
           final leading = match?.group(0) ?? '';
           final indentLen = leading.length;
@@ -392,9 +389,9 @@ class CodeCrafterController extends TextEditingController {
           String accumulatedText = '';
           TextStyle? currentStyle;
 
-          for (int col = 0; col < lineChars.length; col++) {
+          for (int col = 0; col < line.length; col++) {
             final globalIdx = startOfLineOffset + col;
-            String ch = lineChars.elementAt(col);
+            String ch = line[col];
             if (ch == ' ' && guideCols.contains(col)) ch = '│';
 
             final bool isMatch = globalIdx == b1 || globalIdx == b2;

pubspec.yaml

@@ -1,10 +1,10 @@
 name: flutter_code_crafter
 description: "Powerful code editor with AI code completion and LSP support"
-version: 0.2.8
+version: 0.2.9
 homepage: https://github.com/heckmon/flutter_code_crafter
 
 environment:
-  sdk: ^3.8.1
+  sdk: ^3.9.0
   flutter: ">=1.17.0"
 
 dependencies: