v0.3.0

Added

• Perpetuals trading — a new Perps tab covering perps markets on Avantis, with live prices, market listings, and your open positions. The agent gains a matching set of Avantis tools to open and manage positions (execution is still approved in the Base app).
• Technical analysis — a streaming TA panel for perps markets, with indicators computed from Pyth price history; the same analysis is available to the agent as a tool.
• Multi-language interface — the UI is fully internationalized with English, Korean, and Chinese, selectable from a language switcher and remembered per user.

Changed

• Database schema — added user_settings.lang to persist each user's interface language. Apply with pnpm --filter @workspace/db run push.
• Expanded the agent's built-in (native) tools with the new perps and technical-analysis capabilities.