Move CLI reference to docs/COMMANDS.md, slim down README

v1.1.0: Refactor + trade logging + embeddings + snapshot restore

Add vector similarity search, CSV export, shorten README

Fix README image paths to bypass GitHub cache

Fix dataflow diagram: clean arrow routing, no box overlap

Update diagrams to black & white, remove generator script

v1.1: Dashboard UI, ML models, multi-timeframe, LLM provider picker

Initial release: GoldShield EA with AI-ready data pipeline