Add Crypto.com CSV adapter

[gfargo]

Summary

• add a dedicated Crypto.com CSV adapter and source ID
• support Crypto.com App transaction-history, Exchange trade-history, and DeFi Wallet-style sent/received CSV profiles
• wire Crypto.com through account config, CLI sync, package exports, README, and Kiro steering

Research notes

• Crypto.com Help Center documents CSV export for Crypto Wallet, Cash Wallet, and Visa Card history from the app: https://help.crypto.com/en/articles/3438579-how-do-i-export-my-transaction-history-app
• Public schema/import references document App export columns like Timestamp (UTC), Transaction Description, Currency, Amount, To Currency, To Amount, Native Currency, Native Amount, Transaction Kind, and Transaction Hash, plus Exchange trade fields like Order ID, Trade ID, Time (UTC), Symbol, Side, Trade Price, Trade Amount, Volume of Business, Fee, and Fee Currency.

Validation

• pnpm test -- packages/sources/src/crypto-com/csv.test.ts packages/cli/src/commands/sync.test.ts packages/cli/src/commands/account.test.ts
• pnpm typecheck
• pnpm lint
• pnpm build
• pnpm test (35 files, 499 tests)

Closes #23