Add Workers for Platforms bindings documentation

[dinasaur404]

Summary

Adding a new page to the Workers for Platforms docs to document how platform customers can add bindings to user workers.

Screenshots (optional)

Documentation checklist

• [X ] The documentation style guide has been adhered to.

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PR Change Summary

Added a new documentation page for Workers for Platforms, detailing how platform customers can add bindings to user workers.

• Introduced a new page on bindings for User Workers in the Workers for Platforms documentation.
• Explained how to create and attach various resource bindings like KV, D1, and R2 to User Workers.
• Provided examples of API requests and Wrangler configurations for adding bindings.

Added Files

• src/content/docs/cloudflare-for-platforms/workers-for-platforms/get-started/bindings.mdx

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[windsurf-bot]

The API link is pointing to a localhost URL which won't work for users. This should be replaced with the actual production URL.

Suggested change

	Use the [Upload User Worker API](http://localhost:1111/api/resources/workers_for_platforms/subresources/dispatch/subresources/namespaces/subresources/scripts/methods/update/) to attach bindings to a Worker. You can do this when you're first uploading the Worker script or when updating an existing Worker.
	Use the [Upload User Worker API](/api/resources/workers_for_platforms/subresources/dispatch/subresources/namespaces/subresources/scripts/methods/update/) to attach bindings to a Worker. You can do this when you're first uploading the Worker script or when updating an existing Worker.

[github-actions]

This pull request requires reviews from CODEOWNERS as it changes files that match the following patterns:

Pattern	Owners
/src/content/docs/cloudflare-for-platforms/workers-for-platforms/	@irvinebroque, @GregBrimble, @cloudflare/deploy-config, @cloudflare/pcx-technical-writing

[github-actions]

Preview URL: https://d9add4ee.preview.developers.cloudflare.com
Preview Branch URL: https://docs-wfp-bindings.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/cloudflare-for-platforms/workers-for-platforms/get-started/bindings/	https://docs-wfp-bindings.preview.developers.cloudflare.com/cloudflare-for-platforms/workers-for-platforms/get-started/bindings/
https://developers.cloudflare.com/cloudflare-for-platforms/workers-for-platforms/get-started/user-workers/	https://docs-wfp-bindings.preview.developers.cloudflare.com/cloudflare-for-platforms/workers-for-platforms/get-started/user-workers/

[markdembo]

Great addition, but needs some work imho