feat: prepare CLI 1.0.1 with GasFree and modular architecture

[boboliu-1010]

Summary

• upgrade to the released x402 SDK 1.0.1 and Gateway 1.0.1
• release @bankofai/x402-cli@1.0.1
• support canonical TRON Permit2 and exact_gasfree payments
• enforce GasFree relayer fee limits and improve multi-requirement selection
• preserve settlement details and report paid, settled, and delivered independently
• split the CLI into focused modules and delegate provider/catalog behavior to the Gateway public API
• make package builds clean and reproducible

Release

• npm: @bankofai/x402-cli@1.0.1
• dependency: @bankofai/x402-gateway@1.0.1

Validation

• npm test (24/24)
• npm run test:package (packed CLI 1.0.1)
• npm audit --omit=dev --audit-level=high (0 vulnerabilities)
• live TM Permit2 and GasFree challenge smoke tests

Release readiness

• Gateway 1.0.1 is published to npm
• the CLI lockfile resolves the released Gateway 1.0.1
• after merge, publish CLI 1.0.1 and create tag v1.0.1

Notes

• SunPump upstream HTTP 405 is intentionally out of scope
• facilitator HTTP 429 is surfaced as an unsettled rate-limit failure