feat: added env for Cloudflare AI Gateway

[roerohan]

Add Cloudflare AI Gateway support to OpenCode integration.

Users can now route AI provider requests through Cloudflare AI Gateway by adding a cloudflareAIGateway provider configuration:

config: {
  provider: {
    anthropic: { options: { apiKey: env.ANTHROPIC_KEY } },
    cloudflareAIGateway: {
      options: {
        accountId: env.CF_ACCOUNT_ID,
        gatewayId: env.CF_GATEWAY_ID,
        apiToken: env.CF_API_TOKEN,
      }
    }
  }
}

The SDK extracts these values and passes them as environment variables (CLOUDFLARE_ACCOUNT_ID, CLOUDFLARE_GATEWAY_ID, CLOUDFLARE_API_TOKEN) to the OpenCode server running in the container (as per this doc).

[changeset-bot]

🦋 Changeset detected

Latest commit: c97132e

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@cloudflare/sandbox	Patch

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