Add .env.sample

Author: kkchandi

samples/agent-catalog/msft-agent-samples/semantic-kernel-sdk/video-translation-agent/.env.sample

@@ -0,0 +1,13 @@
+# Azure AI Agent Configuration
+AZURE_AI_AGENT_PROJECT_CONNECTION_STRING = "your-region.api.azureml.ms;your-subscription-id;your-resource-group;your-project-name"
+AZURE_AI_AGENT_MODEL_DEPLOYMENT_NAME = "your-model-deployment-name"
+AZURE_AI_AGENT_ENDPOINT = "https://your-ai-service.services.ai.azure.com/models"
+AZURE_AI_AGENT_SUBSCRIPTION_ID = "your-subscription-id"
+AZURE_AI_AGENT_RESOURCE_GROUP_NAME = "your-resource-group"
+AZURE_AI_AGENT_PROJECT_NAME = "your-project-name"
+
+# Azure Storage Configuration (required for local file uploads)
+AZURE_STORAGE_ACCOUNT_NAME="your-storage-account-name"
+
+# Video Translation / Cognitive Service Configuration
+COGNITIVE_SERVICES_ENDPOINT = "your-cognitive-services-endpoint"