Telemetry: add RequestId and ConversationId to toolCallDetails and response.success events

[24anisha]

Currently, the toolCallDetails events don't contain the relevant RequestId, and response.success events don't contain the ConversationId. This makes it difficult to complete some of our desired telemetry data analysis.

[github-actions]

Screenshot Changes

Base: ca3b9bfb Current: 66b88ecf

Changed (2)

chat/aiCustomizations/aiCustomizationManagementEditor/McpBrowseMode/Dark

Before	After

chat/aiCustomizations/aiCustomizationManagementEditor/McpBrowseMode/Light

Before	After

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blocks-ci screenshots changed

Replace the contents of test/componentFixtures/blocks-ci-screenshots.md with:

Updated blocks-ci-screenshots.md

<!-- auto-generated by CI — do not edit manually -->

#### editor/codeEditor/CodeEditor/Dark
![screenshot](https://hediet-screenshots.azurewebsites.net/images/cb32a3e854b5734fe5aaca2318f2e0a42ee821b05ea97883ea42c5ba95edb3c3)

#### editor/codeEditor/CodeEditor/Light
![screenshot](https://hediet-screenshots.azurewebsites.net/images/42624fbba5e0db7f32c224b5eb9c5dd3b08245697ae2e7d2a88be0d7c287129b)

[Copilot]

Pull request overview

This PR enhances Copilot chat telemetry so analysts can reliably correlate tool-calling behavior and successful responses with the correct per-turn request and conversation identifiers.

Changes:

• Adds requestId to the toolCallDetails telemetry event payload (and updates its GDPR schema accordingly).
• Threads conversationId into response.success telemetry by propagating it into the fetcher’s base telemetry and emitting it in the success event (with GDPR schema update).

Show a summary per file

File	Description
extensions/copilot/src/extension/prompt/node/chatParticipantTelemetry.ts	Adds requestId to toolCallDetails event properties and declares it in the GDPR schema.
extensions/copilot/src/extension/prompt/node/chatMLFetcherTelemetry.ts	Adds conversationId to the response.success GDPR schema and includes it in emitted success telemetry properties.
extensions/copilot/src/extension/prompt/node/chatMLFetcher.ts	Ensures conversationId is included in the base telemetry data used downstream by response.success.

Copilot's findings

• Files reviewed: 3/3 changed files
• Comments generated: 0