feat: add initial implementation of Simple AI Provider package

src/index.ts

@@ -0,0 +1,52 @@
+/**
+ * Simple AI Provider - Main Entry Point
+ * 
+ * A professional, extensible package for integrating multiple AI providers
+ * into your applications with a unified interface.
+ * 
+ * @author Jan-Marlon Leibl
+ * @version 1.0.0
+ */
+
+// Core types and interfaces
+export type {
+  AIProviderConfig,
+  AIMessage,
+  MessageRole,
+  CompletionParams,
+  CompletionResponse,
+  CompletionChunk,
+  TokenUsage,
+  ProviderInfo
+} from './types/index.js';
+
+// Error handling
+export { AIProviderError, AIErrorType } from './types/index.js';
+
+// Base provider class
+export { BaseAIProvider } from './providers/base.js';
+
+// Concrete provider implementations
+export { ClaudeProvider, type ClaudeConfig } from './providers/claude.js';
+
+// Utility functions and factory
+export {
+  createProvider,
+  createClaudeProvider,
+  ProviderRegistry,
+  type ProviderType,
+  type ProviderConfigMap
+} from './utils/factory.js';
+
+// Re-export everything from providers for convenience
+export * from './providers/index.js';
+
+/**
+ * Package version
+ */
+export const VERSION = '1.0.0';
+
+/**
+ * List of supported providers
+ */
+export const SUPPORTED_PROVIDERS = ['claude'] as const;