feat(ai): Add models.dev data integration

- Add models script to download latest model information
- Create models.ts module to query model capabilities
- Include models.json in package distribution
- Export utilities to check model features (reasoning, tools)
- Update build process to copy models.json to dist

packages/ai/src/index.ts

@@ -1,5 +1,26 @@
 // @mariozechner/ai - Unified API for OpenAI, Anthropic, and Google Gemini
 // This package provides a common interface for working with multiple LLM providers
 
-// TODO: Export types and implementations once defined
 export const version = "0.5.8";
+
+// Export models utilities
+export {
+	getAllProviders,
+	getModelInfo,
+	getProviderInfo,
+	getProviderModels,
+	loadModels,
+	type ModelInfo,
+	type ModelsData,
+	type ProviderInfo,
+	supportsThinking,
+	supportsTools,
+} from "./models.js";
+
+// Export providers
+export { AnthropicLLM } from "./providers/anthropic.js";
+export { GeminiLLM } from "./providers/gemini.js";
+export { OpenAICompletionsLLM } from "./providers/openai-completions.js";
+export { OpenAIResponsesLLM } from "./providers/openai-responses.js";
+// Export types
+export type * from "./types.js";