chore(changelog): update to version 2.3.7 with new features and fixes

- Added update and delete endpoints for WhatsApp Business Meta templates.
- Fixed issues with incoming message events and authentication states after reconnection.
- Resolved unique constraint errors in OnWhatsapp cache and optimized database writes.
- Improved proxy integration for media uploads and fixed handling of base64, filename, and caption in the WhatsApp Business API.
- Enhanced chat service reliability and contact filtering capabilities.
- Made multiple integration improvements between Chatwoot and Baileys.
- Refactored code for better quality and consistency.

CHANGELOG.md

@@ -1,3 +1,71 @@
+# 2.3.7 (2025-11-07)
+
+### Features
+
+* **WhatsApp Business Meta Templates**: Add update and delete endpoints for Meta templates
+  - New endpoints to edit and delete WhatsApp Business templates
+  - Added DTOs and validation schemas for template management
+  - Enhanced template lifecycle management capabilities
+
+### Fixed
+
+* **Baileys Message Processor**: Fix incoming message events not working after reconnection
+  - Added cleanup logic in mount() to prevent memory leaks from multiple subscriptions
+  - Recreate messageSubject if it was completed during logout
+  - Remount messageProcessor in connectToWhatsapp() to ensure subscription is active
+  - Fixed issue where onDestroy() calls complete() on RxJS Subject, making it permanently closed
+  - Ensures old subscriptions are properly cleaned up before creating new ones
+
+* **Baileys Authentication**: Resolve "waiting for message" state after reconnection
+  - Fixed Redis keys not being properly removed during instance logout
+  - Prevented loading of old/invalid cryptographic keys on reconnection
+  - Fixed blocking state where instances authenticate but cannot send messages
+  - Ensures new credentials (creds) are properly used after reconnection
+
+* **OnWhatsapp Cache**: Prevent unique constraint errors and optimize database writes
+  - Fixed `Unique constraint failed on the fields: (remoteJid)` error when sending to groups
+  - Refactored query to use OR condition finding by jidOptions or remoteJid
+  - Added deep comparison to skip unnecessary database updates
+  - Replaced sequential processing with Promise.allSettled for parallel execution
+  - Sorted JIDs alphabetically in jidOptions for accurate change detection
+  - Added normalizeJid helper function for cleaner code
+
+* **Proxy Integration**: Fix "Media upload failed on all hosts" error when using proxy
+  - Created makeProxyAgentUndici() for Undici-compatible proxy agents
+  - Fixed compatibility with Node.js 18+ native fetch() implementation
+  - Replaced traditional HttpsProxyAgent/SocksProxyAgent with Undici ProxyAgent
+  - Maintained legacy makeProxyAgent() for Axios compatibility
+  - Fixed protocol handling in makeProxyAgent to prevent undefined errors
+
+* **WhatsApp Business API**: Fix base64, filename and caption handling
+  - Corrected base64 media conversion in Business API
+  - Fixed filename handling for document messages
+  - Improved caption processing for media messages
+  - Enhanced remoteJid validation and processing
+
+* **Chat Service**: Fix fetchChats and message panel errors
+  - Fixed cleanMessageData errors in Manager message panel
+  - Improved chat fetching reliability
+  - Enhanced message data sanitization
+
+* **Contact Filtering**: Apply where filters correctly in findContacts endpoint
+  - Fixed endpoint to process all where clause fields (id, remoteJid, pushName)
+  - Previously only processed remoteJid field, ignoring other filters
+  - Added remoteJid field to contactValidateSchema for proper validation
+  - Maintained multi-tenant isolation with instanceId filtering
+  - Allows filtering contacts by any supported field instead of returning all contacts
+
+* **Chatwoot and Baileys Integration**: Multiple integration improvements
+  - Enhanced code formatting and consistency
+  - Fixed integration issues between Chatwoot and Baileys services
+  - Improved message handling and delivery
+
+### Code Quality & Refactoring
+
+* **Template Management**: Remove unused template edit/delete DTOs after refactoring
+* **Proxy Utilities**: Improve makeProxyAgent for Undici compatibility
+* **Code Formatting**: Enhance code formatting and consistency across services
+
 # 2.3.6 (2025-10-21)
 
 ### Features