Add OpenRouter support for multi-model AI commit generation

[uvenkatateja]

Summary

Adds OpenRouter as an alternative AI provider, giving users access to 100+ models (Claude, GPT-4, Llama, Mistral, Gemini, etc.) while maintaining full backward compatibility with Groq.

Changes

• Added new provider config option (groq | openrouter)
• Created src/utils/openrouter.ts for OpenRouter API integration
• Updated config to support both GROQ_API_KEY and OPENROUTER_API_KEY
• Default model per provider: Groq uses llama-3.1-8b-instant, OpenRouter uses anthropic/claude-3.5-sonnet
• Updated CLI to dynamically select provider based on config
• Version bump to 1.1.0

Usage

# Switch to OpenRouter
lazycommit config set provider=openrouter
lazycommit config set OPENROUTER_API_KEY=sk-or-your-key

# Use any OpenRouter model
lazycommit config set model=anthropic/claude-3.5-sonnet

# Switch back to Groq (default)
lazycommit config set provider=groq

[vercel]

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