sol mainnet payouts tasks

docs/prd.json

@@ -1051,10 +1051,31 @@
         "US-046"
       ],
       "completionNotes": "Skip auto-join when model explicit; sequential source try with progress; 30 s model-source timeout; assignment_vram_mb for CPU; per-file /v1/model-files/download with manifest and retries. Remaining: live Windows two-machine retest."
+    },
+    {
+      "id": "US-049",
+      "title": "49 — Mainnet USDT cutover: two-wallet pilot checklist",
+      "description": "Operator runbook to move from Solana devnet + mock-USDT to mainnet + real USDT for a minimal pilot: one client wallet (deposits USDT, pays for inference) and one node wallet (receives batched payouts). Treasury holds USDT float and SOL for fees. TAI deferred per ADR-0025.",
+      "acceptanceCriteria": [
+        "Devnet smoke completed: settlement loop pays with --settle-period 60 and mock mint",
+        "python -m pytest tests/test_settlement_loop.py -q passes (includes 24 h / 5 USDT gate tests)",
+        "Mainnet tracker configured: real USDT mint, --starting-credit 0, --devnet-topup 0, --settle-period 86400",
+        "Client wallet deposit credits API key ledger; inference debits balance",
+        "Node wallet receives at least one confirmed mainnet USDT payout batch",
+        "Sub-threshold pending not paid before 24 h; ≥5 USDT pending triggers immediate payout"
+      ],
+      "priority": 49,
+      "status": "open",
+      "notes": "Source issue: docs/issues/49-mainnet-usdt-cutover-two-wallet-pilot.md. ADR-0025 covers optional TAI mint; not blocking this pilot.",
+      "dependsOn": [
+        "US-032",
+        "US-033",
+        "US-039"
+      ]
     }
   ],
   "metadata": {
-    "updatedAt": "2026-07-13T16:15:00.000Z",
+    "updatedAt": "2026-07-13T16:40:00.000Z",
     "statusVocabulary": {
       "open": "Not started",
       "in-design": "Decisions pending before implementation can begin",