Bedrock Prompt Caching in Node.js: Converse Setup and Costs

Bedrock prompt caching in Node.js: add cachePoint blocks to Converse API calls, cut Claude input costs, and fix the gotchas that keep cache reads at zero.

Bedrock prompt caching in Node.js: add cachePoint blocks to Converse API calls, cut Claude input costs, and fix the gotchas that keep cache reads at zero.