fix: Update Dust conversation URI format for consistency

Author: mickael-palma-wttj

.github/scripts/shared/ai_services.rb

@@ -230,7 +230,7 @@ def make_request(prompt)
     end
 
     logger.info "✅ Created Dust conversation: #{conversation_id}"
-    conversation_uri = "#{API_BASE_URL}/api/v1/w/#{workspace_id}/assistant/conversations/#{conversation_id}"
+    conversation_uri = "#{API_BASE_URL}/w/#{workspace_id}/assistant/#{conversation_id}"
     logger.info "🔗 Conversation URI: #{conversation_uri}"
 
     # Give the agent more time to process before fetching response