feat(node-sdk): Cloudflare worker support

[roncohen]

This PR adds Cloudflare Worker support to the Node SDK by introducing an edge-optimized cache strategy, updating the client to select between cache strategies, and providing example configurations and documentation.

• Introduce inRequestCache and rename the existing cache to periodicallyUpdatingCache
• Add EdgeClient class with "in-request" cache strategy and update BucketClient to choose based on cacheStrategy
• Supply Cloudflare Worker examples, configuration files, and update documentation

[Copilot]

Pull Request Overview

This PR adds Cloudflare Worker support to the Node SDK by introducing an edge-optimized cache strategy, updating the client to select between cache strategies, and providing example configurations and documentation.

• Introduce inRequestCache and rename the existing cache to periodicallyUpdatingCache
• Add EdgeClient class with "in-request" cache strategy and update BucketClient to choose based on cacheStrategy
• Supply Cloudflare Worker examples, configuration files, and update documentation

Reviewed Changes

Copilot reviewed 25 out of 35 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
packages/node-sdk/src/periodicallyUpdatingCache.ts	Rename default cache export and add stubbed waitRefresh
packages/node-sdk/src/inRequestCache.ts	Add serverless-friendly request-scoped cache implementation
packages/node-sdk/src/edgeClient.ts	New EdgeClient class preconfigured for edge runtimes
packages/node-sdk/src/client.ts	Wire up cacheStrategy, branch cache instantiation, add waitRefresh to flush
packages/node-sdk/src/types.ts	Introduce CacheStrategy and waitRefresh in Cache<T> type
packages/node-sdk/test/inRequestCache.test.ts	New tests for inRequestCache
packages/node-sdk/README.md	Document Cloudflare Worker usage and links to examples