fix(sap-ai-core): use working provider fork for stable OpenCode integration

[jerome-benoit]

Summary

This PR switches the SAP AI Core provider package from @mymediset/sap-ai-provider to @jerome-benoit/sap-ai-provider-v2 (fork).

Depends on PR anomalyco/opencode#10275 for provider package transition handling.

Background

The fork at https://github.com/jerome-benoit/sap-ai-provider for Vercel v3 API and https://github.com/jerome-benoit/sap-ai-provider-v2 for Vercel v2 API includes critical streaming fixes and provider name support and has been used successfully via local configuration for several weeks. Upstream PR BITASIA/sap-ai-provider#28 has been open for several weeks without response.

Without these fixes, SAP AI Core cannot be used in production with OpenCode due to regular SSE stream errors.

Changes

• Updated providers/sap-ai-core/provider.toml to reference the fork package

Workaround

Users can configure OpenCode to use the fork by adding to their JSONC config:

"provider": {
    "sap-ai-core": {
      "npm": "@jerome-benoit/sap-ai-provider-v2",
      "models": {
        // Claude models
        "anthropic--claude-4.5-opus": {},
        "anthropic--claude-4.5-sonnet": {},
        "anthropic--claude-4.5-haiku": {},
        "anthropic--claude-4-opus": {},
        "anthropic--claude-4-sonnet": {},
        "anthropic--claude-3.7-sonnet": {},
        "anthropic--claude-3.5-sonnet": {},
        "anthropic--claude-3-opus": {},
        "anthropic--claude-3-sonnet": {},
        "anthropic--claude-3-haiku": {},
        // OpenAI models
        "gpt-5": {},
        "gpt-5-mini": {},
        "gpt-5-nano": {},
        // Gemini models
        "gemini-2.5-pro": {},
        "gemini-2.5-flash": {},
      },
    },
  },

Then

rm -rf /$HOME/.cache/opencode/node_modules/
rm /$HOME/.cache/opencode/package.json
rm /$HOME/.cache/opencode/bun.lock

And restart opencode

[Copilot]

Pull request overview

This PR temporarily switches the SAP AI Core provider from the unmaintained @mymediset/sap-ai-provider package to a fork (@jerome-benoit/sap-ai-provider) to ensure stable integration with OpenCode.

Changes:

• Updated npm package reference in SAP AI Core provider configuration to use a temporary fork

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[jerome-benoit]

@rekram1-node: could you please review that PR? OpenCode SAP AI Core support is not usable in production.

OpenCode is currently buggy at reinstalling provider package when it change, but I will fix it to ensure smooth transition when time permits.