Merge pull request #21 from coingecko/docs/surface-commands-in-help

refactor: un-hide `commands` instead of manually advertising it

feat: add `cg commands` entry to welcome banner

feat: surface `cg commands` in help output

Merge pull request #17 from coingecko/feat/custom-user-agent

fix: remove unnecessary empty-string guards on UserAgent

test: add WebSocket User-Agent handshake test

feat: add custom User-Agent header to identify CLI traffic

Merge pull request #16 from coingecko/docs/fix-readme-watch-description

docs: remove update frequency claim from watch description

Merge pull request #15 from coingecko/feat/watch-websocket-streaming

fix: use brand green for price flash and deduplicate API client creation

fix: add SIGTERM handling, requirePaid at command level, note on hardcoded row

fix: hold mutex during all WebSocket writes and use stdout color for watch table

feat: validate coin IDs and resolve symbols via /search before streaming