Merge PR #22 (DEBUG env var) with local enhancements: crypto tools, improved orders, better date parsing

feat: add DEBUG env var

docs: improve Features section to comprehensively cover available tools including crypto trading

feat: add place_crypto_order function and enhance order response details

feat: add exercise_options_position function

refactor: simplify get_option_contracts and add complete field coverage

fix: resolve Google Gemini compatibility in place_option_market_order

Fixes bug in alpaca_mcp_server.py to enable live trading (#17)

docs: add uv installation option and add doc reference for Python version compatibility

Fix host/port binding and update documentation

Migrate corporate announcements to new Alpaca API

fix: HTTP transport compatibility with official MCP Python SDK

Fix import interference by moving argument parsing to main block and removing unnecessary host/port defaults

docs: Update watchlist API limitations, corporate actions, and add legal disclosures:

feat: Add HTTP transport support: