chore(changelog): update CHANGELOG for version 2.3.4 release

- Enhanced EvolutionBot functionality with splitMessages and linkPreview support
- Centralized message splitting logic across chatbot services for consistency
- Improved message formatting and delivery capabilities

Author: DavidsonGomes

CHANGELOG.md

@@ -1,4 +1,4 @@
-# 2.3.4 (develop)
+# 2.3.4 (2025-09-23)
 
 ### Features
 
@@ -20,6 +20,12 @@
   - Multi-language support (English, Portuguese, Spanish, French)
   - Modern React + TypeScript + Vite frontend with Tailwind CSS
 
+* **EvolutionBot Enhancements**: Improved EvolutionBot functionality and message handling
+  - Implemented splitMessages functionality for better message segmentation
+  - Added linkPreview support for enhanced message presentation
+  - Centralized split logic across chatbot services for consistency
+  - Enhanced message formatting and delivery capabilities
+
 ### Fixed
 
 * **MySQL Schema**: Fixed invalid default value errors for `createdAt` fields in `Evoai` and `EvoaiSetting` models