ECS config based copilot disable

[tyaginidhi]

This pull request includes changes to the PowerPagesCopilot class and related files to handle cases where certain organizations or tenants are disabled. The changes primarily involve checking if the current organization or tenant is included in a list of disabled entities and sending a telemetry event if so. A new utility file copilotUtil.ts has been added to fetch these disabled lists.

Here are the most important changes:

Changes to PowerPagesCopilot class:

• src/common/copilot/PowerPagesCopilot.ts: Imported getDisabledOrgList and getDisabledTenantList from copilotUtil.ts and added checks to see if the current organization or tenant is included in these lists. If so, a telemetry event is sent and a message is sent to the webview indicating that the service is unavailable. [1] [2] [3]

Changes to telemetry constants:

• src/common/copilot/telemetry/telemetryConstants.ts: Added a new constant CopilotNotAvailableECSConfig for the new telemetry event.

Addition of new utility file:

• src/common/copilot/utils/copilotUtil.ts: Added this new file which exports getDisabledOrgList and getDisabledTenantList functions. These functions fetch configuration from ECSFeaturesClient and return lists of disabled organizations or tenants.

Changes to ECSFeaturesClient class:

• src/common/ecs-features/ecsFeatureClient.ts: Modified getConfig method to directly use the ECS configuration instead of caching it in a private variable. [1] [2]

Addition of new feature config:

• src/common/ecs-features/ecsFeatureGates.ts: Added a new feature config CopilotDisableList for disabling certain organizations or tenants.