add APPLICATIONINSIGHTS_CONNECTION_STRING

Author: ks6088ts

.env.template

@@ -1,3 +1,6 @@
+# Azure Application Insights
+APPLICATIONINSIGHTS_CONNECTION_STRING="InstrumentationKey=xxx;IngestionEndpoint=https://xxx.applicationinsights.azure.com/;LiveEndpoint=https://xxx.livediagnostics.monitor.azure.com/"
+
 # Azure OpenAI Service
 AZURE_OPENAI_ENDPOINT="https://<YOUR_AOAI_NAME>.openai.azure.com/"
 AZURE_OPENAI_API_KEY="<YOUR_API_KEY>"