- Add dbx_add_connection and dbx_remove_connection to all docs
- Update storage references from JSON files to SQLite (dbx.db)
- Bump MCP server version to 0.2.0
After migrating storage to SQLite, the MCP server was still reading
from connections.json/secrets.json which no longer exist. Switch to
better-sqlite3 to read directly from dbx.db.
TypeScript MCP Server that reads DBX connection configs and exposes
5 tools: list connections, list tables, describe table, execute query,
and open table in DBX UI. Published as @dbx-app/mcp-server on npm.