Export MCP tool registration functions

[ericglau]

Export language-specific MCP tool registration functions (such as

contracts-wizard/packages/mcp/src/solidity/tools.ts

Line 30 in f39adfd

export function registerSolidityTools(server: McpServer) {

) to allow downstream packages to consume them.

This will provide a stable TS API for other MCP servers such as https://github.com/OpenZeppelin/openzeppelin-mcp

[ericglau]

Also consider bumping the minor version for the mcp and common packages, to reflect that the APIs are stable.