chore: update fleek links to new staging and testing URLs

[levalleux-ludo]

refers to bosonprotocol/agent-builder#35

[Copilot]

Pull request overview

Updates hardcoded environment URLs (previously Fleek-hosted) to the new Cloudflare Pages domains across docs, examples, and CI configuration, per bosonprotocol/agent-builder#35.

Changes:

• Replace staging/testing dApp and widget URLs in docs/boson-environments.md with new *.pages.dev links.
• Update CI workflow and .env.example environment variables to use the new staging/testing URLs (and align production dispute URL).
• Update the commit-button example’s production-domain detection to the new production hostname.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
public/scripts/commit-button-example.html	Updates production URL detection used by the example to select prod vs non-prod config.
docs/boson-environments.md	Replaces staging/testing Marketplace/DRC/Widgets links with new pages.dev URLs.
.github/workflows/ci_reusable.yaml	Updates staging/testing environment variables for “contact seller” and “raise dispute” deep links.
.env.example	Updates example env vars to match new staging/testing URLs and the production dispute center URL.

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[cloudflare-workers-and-pages]

Deploying boson-widgets-testing with    Cloudflare Pages

Latest commit:	add015a
Status:	✅  Deploy successful!
Preview URL:	https://0dd341f6.boson-widgets-testing.pages.dev
Branch Preview URL:	https://replace-fleek-links.boson-widgets-testing.pages.dev

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