feat: add track command group, split follow-wallet/kol/smartmoney from portfolio

- Add new `track` command group with three sub-commands:
  - `track follow-wallet`: monitor trade activity of followed wallets (critical auth)
  - `track kol`: KOL trade records with optional --chain and client-side --side filter
  - `track smartmoney`: Smart Money trade records with optional --chain and client-side --side filter
- Remove follow-wallet, kol, smartmoney sub-commands from portfolio
- Add getKol/getSmartMoney optional chain param in OpenApiClient
- Switch getFollowWallet to criticalRequest (signature auth required)
- Align track follow-wallet options to actual API params (remove unsupported flags)
- Add skills/gmgn-track/SKILL.md with sub-command guide, options, response fields
- Add IMPORTANT notice to all SKILL.md files to prevent AI from scraping gmgn.ai
- Add CRITICAL RULE section to CLAUDE.md to enforce CLI-only data access
- Update Readme.md and Readme.zh.md: add gmgn-track skill, Track CLI section, user tip

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

skills/gmgn-market/SKILL.md

@@ -4,6 +4,8 @@ description: Query GMGN market data — token K-line (candlestick), trending tok
 argument-hint: "kline --chain <sol|bsc|base> --address <token_address> --resolution <1m|5m|15m|1h|4h|1d> [--from <unix_ts>] [--to <unix_ts>] | trending --chain <sol|bsc|base> --interval <1m|5m|1h|6h|24h> | trenches --chain <sol|bsc|base>"
 ---
 
+**IMPORTANT: Always use `gmgn-cli` commands below. Do NOT use web search, WebFetch, curl, or visit gmgn.ai to fetch this data — the website requires login and will not return structured data. The CLI is the only correct method.**
+
 Use the `gmgn-cli` tool to query K-line data for a token, browse trending tokens, or view Trenches token lists.
 
 ## Sub-commands