feat(ecosystem): enforce raw amount semantics across miniapp transactions

[Gaubee]

Summary

• enforce raw-only amount validation for bio_createTransaction, bio_sendTransaction, and bio_destroyAsset
• add shared raw amount parsing helpers and keep destroy confirmation display/execution aligned to raw semantics
• align teleport miniapp to convert input amount into raw before requesting host transaction creation
• document the raw amount standard in white-book and bio-sdk communication guide
• add targeted unit tests for raw helpers and ecosystem handlers

Validation

• pnpm -C miniapps/teleport lint:run
• pnpm -C miniapps/teleport typecheck:run
• pnpm -C packages/bio-sdk typecheck:run
• pnpm vitest run src/services/ecosystem/__tests__/raw-amount.test.ts src/services/ecosystem/__tests__/destroy-handler.test.ts src/services/ecosystem/__tests__/transaction-handler-amount.test.ts src/services/ecosystem/__tests__/transfer-handler.test.ts