Add the corner-store reference CLI

[heijiLee]

Stacked on #29 (CLI-001 + CLI-002). Interactive terminal client for driving the deployed stack — the CLI counterpart to the scripted demo.

Core (CLI-001): status, onboard, manifest, attest, investor-setup, kyc, buy (AMM/RFQ), rfq-quote, rfq-cancel, maker, reason

• Every ComplianceRejected revert auto-decoded to a human-readable cause (reason table verified bit-exact against the engine's encoding); failures exit nonzero
• Reuses services/rfq's EIP-712 signer; ERC-3643 KYC delegated to script/KycInvestor.s.sol on the shared TREXCore

v2 (CLI-002): check — per-element preflight matrix + engine verdict without trading (flagship); sell; balances; watch — live decoded event tail; faucet; snapshot/restore (Anvil demo resets); quote-inspect — RFQ quote validation

No src/ changes (only script/KycInvestor.s.sol). Suite 238/238; CLI smoke green (incl. tampered-signature FAIL path); both command sets verified against a live Anvil node with full walkthrough transcripts. Usage: scripts/e2e-anvil.sh --keep then services/cli/README.md.

[0xMuang]

CLI package와 smoke test가 추가됐으니 scripts/check.sh에도 services/cli install/test 단계를 포함해 주세요.

현재는 services/cli/test/smoke.ts가 있어도 repo-level check에서 실행되지 않아서 CLI compile/smoke regression을 놓칠 수 있습니다.