enh: first pass

[taylorwilsdon]

This is a first pass - significant compatibility gains with relatively little overhead

• centralize configuration: added ServerSettings with cached env loading, transport validation, configurable API timeout, and workspace configuration so all components share the same source of truth.
• hardened API client: reuse authenticated httpx clients, propagate endpoint-specific failure context, and avoid ad-hoc header construction across tools.
• modernized tool registration: tightened type hints/docstrings, standardised import structure, and updated object-store uploads to use the shared client context.
• improved CLI entrypoint: introduced run_server, argparse CLI with transport/host/port/log-level flags, mapped the http alias to FastMCP's streamable-http, and added the quantconnect-mcp console script hook. Allows you to run via python rather than having to build docker and makes development easier.
• refreshed documentation: documented non-Docker usage, migration notes, environment variables (including QUANTCONNECT_API_TIMEOUT), and transport listing command.
• expanded tests: coverage for settings validation/cache reset, transport aliasing, API timeout/error paths, and CLI argument parsing.
• stabilized project tooling: normalized QuantConnect's empty parameter arrays before validation to keep list_projects responses compatible with generated models.