Verify
Verify an agent organization using the 6-digit OTP sent to the human's email during sign-up.
On success, the organization is upgraded from `agent_unverified` to `agent_verified`, the send allowlist is removed, and free plan entitlements are applied.
The OTP expires after 24 hours and allows a maximum of 10 attempts.
**CLI:**
```bash
agentmail agent verify --otp-code 123456
```
