v0.2.0

What's New

• buy_credits tool — CLI (varrd buy-credits) + SDK (v.buy_credits())
• Welcome banner with passkey, balance, and merge instructions for new agents
• SDK handles multi-content responses (banner + tool data)
• Updated AGENTS.md with credits, payment, and account linking docs
• Updated instructions with buy-credits command and account linking flow

Install / Upgrade

pip install --upgrade varrd