Improve alphaXiv client outputs and exports

cli/README.md

@@ -0,0 +1,30 @@
+# Alpha Hub
+
+Unofficial alphaXiv-powered CLI and library for research agents.
+
+## Install
+
+```bash
+npm install -g @companion-ai/alpha-hub
+```
+
+## Quick Start
+
+```bash
+alpha login
+alpha search "attention mechanism"
+alpha get 1706.03762
+alpha ask 1706.03762 "What datasets were used for evaluation?"
+alpha code https://github.com/openai/gpt-2 /
+```
+
+## Package Exports
+
+This package exposes:
+
+- `alpha` CLI
+- `alpha-mcp` CLI
+- library helpers from `@companion-ai/alpha-hub/lib`
+
+Repository:
+https://github.com/getcompanion-ai/alpha-hub