feat(plugin): add Junct plugin — 20+ crypto MCP servers for Virtuals agents

[junct-bot]

Summary

Adds the Junct community plugin, giving every Virtuals agent access to 20+ hosted crypto MCP servers:

• Exchanges: Binance (340 tools)
• DeFi: Aave, Compound, Maker, Curve, Beefy
• Oracles: Chainlink
• Bridges: Stargate
• Analytics: CoinGecko, DefiLlama, Blockscout
• Staking: Lido, EigenLayer
• And more: ENS, Jupiter, Synthetix, GMX

780+ tools total, zero API keys needed for read endpoints.

Three tools

Tool	Description
list_junct_servers	Discover available crypto servers
list_junct_tools	List tools on a specific server
call_junct_tool	Call any tool via MCP JSON-RPC

How it works

Each tool call makes an HTTP POST to {server_id}.mcp.junct.dev/mcp using the MCP JSON-RPC protocol. Servers are hosted and maintained by Junct.

Checklist

• Plugin follows GAME SDK conventions (Function/Argument types)
• README with install, usage, server list
• pyproject.toml with dependencies
• plugin_metadata.yml
• Example worker script
• All executables accept **kwargs and return (FunctionResultStatus, str, dict)

[junct-bot]

Junct is the agent-readiness layer for the crypto stack — deterministic MCP servers, 1:1 spec coverage, no AI generation, fully auditable.
Checking in on this PR. The plugin gives GAME agents access to Junct's hosted DeFi server registry — CoinGecko, Blockscout, Stargate, Synthetix, GMX, Maker, ENS, EigenLayer, Chainlink, Lido, Beefy, Curve, Jupiter, Binance, Euler and more, all live at *.mcp.junct.dev. No auth, no API key, free to use. Happy to make any changes needed for review.