Add OFREP provider integration details to flagd documentation

[askpt]

This pull request adds documentation for using the OFREP (OpenFeature Remote Evaluation Protocol) provider as an alternative to the native flagd provider in Aspire integrations. It introduces a new section with setup instructions for the OFREP provider and highlights its benefits for polyglot environments. Additionally, it updates the getting started guide to mention OFREP as an alternative and provides relevant links for further reading.

OFREP provider documentation and integration:

• Adds a new section to flagd-client.mdx detailing how to install, configure, and use the OFREP provider with Aspire, including code samples for both the app host and client projects.
• Explains that the OFREP provider uses the OFREP_ENDPOINT environment variable and references the official OFREP specification for more information.

Getting started guide updates:

• Adds a tip in flagd-get-started.mdx introducing OFREP as an HTTP/REST-based alternative to the gRPC provider, with a link to the new documentation section.
• Adds a link to the OFREP specification in the "See also" section for easier access to protocol details.

[askpt]

@microsoft-github-policy-service agree

[Copilot]

Pull request overview

Adds OFREP (OpenFeature Remote Evaluation Protocol) guidance to the flagd integration docs, helping readers choose an HTTP/REST-based option alongside the existing provider approach.

Changes:

• Add a “Use OFREP provider” section to the flagd client integration reference.
• Add a tip callout in the flagd get-started guide pointing readers to the OFREP option.
• Add an OFREP specification link to the get-started “See also” list.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
src/frontend/src/content/docs/integrations/devtools/flagd/flagd-get-started.mdx	Adds an OFREP tip callout and links to the new client section/spec.
src/frontend/src/content/docs/integrations/devtools/flagd/flagd-client.mdx	Documents how to install/configure the OFREP provider and pass the endpoint from AppHost.

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