feat: add persisted query ID context key and update related functiona…

[faisalwaseem]

feat: add persisted query ID context key and update related functionality as requested by in https://apollographql.atlassian.net/browse/TSH-22140

• Introduced a new context key for persisted query ID in the Apollo Router.
• Updated the PersistedQueryLayer to store the persisted query ID in the request context.
• Enhanced the Rhai engine to utilize the new persisted query ID context key.
• Added tests to verify the correct storage and retrieval of the persisted query ID from the context.
• Updated documentation to reflect the new context key for persisted queries.

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Checklist

Complete the checklist (and note appropriate exceptions) before the PR is marked ready-for-review.

• PR description explains the motivation for the change and relevant context for reviewing
• PR description links appropriate GitHub/Jira tickets (creating when necessary)
• Changeset is included for user-facing changes
• Changes are compatible¹
• Documentation² completed
• Performance impact assessed and acceptable
• Metrics and logs are added³ and documented
• Tests added and passing⁴
  • Unit tests
  • Integration tests
  • Manual tests, as necessary

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[apollo-librarian]

✅ Docs preview ready

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File Changes

0 new, 3 changed, 0 removed

* graphos/routing/(latest)/customization/rhai/reference.mdx
* graphos/routing/(latest)/observability/router-telemetry-otel/enabling-telemetry/selectors.mdx
* graphos/routing/(latest)/observability/router-telemetry-otel/enabling-telemetry/spans.mdx

Build ID: f12ccd697fb4273ba4ec7979
Build Logs: View logs

URL: https://www.apollographql.com/docs/deploy-preview/f12ccd697fb4273ba4ec7979

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⚠️ AI Style Review — 1 Issue Found

Summary

This pull request updates the documentation style guide with two key revisions: the 'text-formatting' section now specifies that code font must be used for all symbols appearing in code, and the 'word-and-symbol-usage' section has been updated to require the use of 'ID' (without code font) when referring to generic identifiers.

Duration: 2904ms
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This review is AI-generated. Please use common sense when accepting these suggestions, as they may not always be accurate or appropriate for your specific context.

[rohan-b99]

This looks good to me, I think we just need a changeset