donation mechanism/link?

I expect costs will be pretty low but it's difficult to say

we're using [this model](https://developers.cloudflare.com/workers-ai/models/bge-large-en-v1.5/)

Pricing is

Model Size | Pricing
-- | --
<= 150M parameters | $0.008 per Million Tokens
151M+ parameters | $0.015 per Million Tokens

> https://developers.cloudflare.com/workers-ai/platform/pricing/#embeddings

The issue names no repository file, test, or entry point; it only links the Cloudflare Workers AI model and pricing pages. First inspect the project’s existing public-facing surfaces and contribution context to determine whether a donation mechanism is wanted and where it belongs; done is an agreed, clearly placed donation link or mechanism.

Written by the indexing model from the issue text.