feat: add mcp source primitive (#123)

packages/freya-source-mcp/src/index.ts

@@ -0,0 +1,26 @@
+export {
+	McpSource,
+	type McpActionMapping,
+	type McpContextResource,
+	type McpContextTool,
+	type McpFeedItem,
+	type McpFeedItemMapping,
+	type McpSourceOptions,
+} from "./mcp-source"
+
+export {
+	StreamableHttpMcpClient,
+	type McpCallToolParams,
+	type McpCallToolResult,
+	type McpClient,
+	type McpHttpHeaders,
+	type McpListToolsParams,
+	type McpListToolsResult,
+	type McpReadResourceParams,
+	type McpReadResourceResult,
+	type McpResourceContent,
+	type McpRequestOptions,
+	type McpTool,
+	type McpToolContent,
+	type StreamableHttpMcpClientOptions,
+} from "./mcp-client"