Validate new AI sample tests

[jpalvarezl]

Summary

• Enables playback/record coverage for sample tests that pass live validation.
• Records and publishes assets for:
  • ToolboxSamplesTests in azure-ai-agents
  • hosted-agent session and session-file tests in azure-ai-agents
  • skill package and model-list sample tests in azure-ai-projects
• Keeps blocked sample flows present as tests but disabled, with updated reasons.
• Adds hosted-agent preview opt-in headers for session create/get/list/delete sample paths.

Validation

• mvn -f sdk/ai/pom.xml -pl azure-ai-projects -am -DskipTests test-compile
• mvn -f sdk/ai/azure-ai-agents/pom.xml -DskipTests test-compile
• mvn -f sdk/ai/azure-ai-agents/pom.xml -DskipTests checkstyle:check
• mvn -f sdk/ai/azure-ai-projects/pom.xml -DskipTests checkstyle:check
• AZURE_TEST_MODE=LIVE mvn -f sdk/ai/azure-ai-agents/pom.xml -Dtest=CodeAgentSamplesTests,HostedAgentContainerSamplesTests,ToolboxSamplesTests,FabricIQSamplesTests test
• AZURE_TEST_MODE=LIVE mvn -f sdk/ai/azure-ai-projects/pom.xml -Dtest=SamplesTests test
• AZURE_TEST_MODE=RECORD mvn -f sdk/ai/azure-ai-agents/pom.xml -Dtest=ToolboxSamplesTests test
• AZURE_TEST_MODE=RECORD mvn -f sdk/ai/azure-ai-agents/pom.xml -Dtest=HostedAgentContainerSamplesTests test
• AZURE_TEST_MODE=RECORD mvn -f sdk/ai/azure-ai-projects/pom.xml -Dtest=SamplesTests test
• AZURE_TEST_MODE=PLAYBACK mvn -f sdk/ai/azure-ai-agents/pom.xml -Dtest=CodeAgentSamplesTests,HostedAgentContainerSamplesTests,ToolboxSamplesTests,FabricIQSamplesTests test
• AZURE_TEST_MODE=PLAYBACK mvn -f sdk/ai/azure-ai-projects/pom.xml -Dtest=SamplesTests test

Work-resource findings

• foundry-sdk-swedencentral/java was loaded first as requested.
• foundry-sdk-swedencentral hosted-agent images failed provisioning across all checked flavors.
• foundry-sdk-test6 hosted-agent images failed provisioning across all checked flavors.
• foundry-sdk-deployment hosted-agent images became active for base, net, py, and superset; the hosted-agent recordings use the base image with the Java endpoint.
• FABRIC_IQ_PROJECT_CONNECTION_ID was not present in any flavor of the three checked resources. Similar FABRIC_PROJECT_CONNECTION_ID exists.

Still missing / blocked

Area	Status	Reason
Code agent samples	Disabled	Live service returned 403 forbidden: Direct code deployment is not enabled for this subscription.
Hosted-agent endpoint and log-stream samples	Disabled	Agent-scoped OpenAI Responses invocation returns 400: API version not supported. Hosted session/session-file flows are now enabled and recorded.
FabricIQ samples	Disabled	FABRIC_IQ_PROJECT_CONNECTION_ID is not present in any of the three checked resources/flavors. Aliasing FABRIC_PROJECT_CONNECTION_ID got past env lookup but exposed service/client shape issues, so this remains blocked pending a real FabricIQ connection and confirmed API shape.
Data generation job list/create samples	Disabled	Live service returned 400: API operation not supported for token authentication for DataGenerationJobs_List.
Model asset create/update/delete sample	Disabled	Required model asset env vars are not available: FOUNDRY_MODEL_ASSET_NAME, FOUNDRY_MODEL_ASSET_VERSION, FOUNDRY_MODEL_BLOB_URI.