feat(provider): add AI/ML API integration via AI SDK

[D1m7asis]

This PR introduces AI/ML API as a provider integration via the AI SDK.

From https://github.com/lingodotdev/lingo.dev/issues/1154

✅ Features:

• Added provider configuration for AI/ML API
• Verified compatibility with spec v1 models (chat/completions)
• Tested with deepseek/deepseek-chat and openai/gpt-4o as default model

🖼️ Demo:

---

Usage example:

export default lingoCompiler.next({
  sourceLocale: 'en',
  targetLocales: ['ja-JP'],
  models: {
    '*:*': 'aimlapi:openai/gpt-4o',
  },
})(baseConfig);

---

Checklist

• [x] Added provider implementation
• [x] Verified integration with AI SDK
• [x] Provided screenshot of working example