crypto fix

server/interfaces/Catcrafts.Server.cppm

@@ -375,10 +375,22 @@ export namespace Catcrafts::Server {
     // of them at once.
     struct EurcChain {
         std::string name;       // ledger via suffix: "base" -> "eurc-base"
-        std::string rpcUrl;
+        // One or more independent JSON-RPC endpoints for the SAME chain, in
+        // preference order. More than one is the point: a payment is confirmed
+        // only when minConfirmations of them independently agree that the money
+        // is there, so no single node's word can settle an order. The config
+        // spells this "rpcs": [...]; the older single "rpc" still parses and
+        // lands here as a one-element list.
+        std::vector<std::string> rpcUrls;
         std::string contract;   // the EURC token contract on this chain
         std::string blockTag = "finalized";
         int decimals = 6;
+        // How many endpoints must independently report a covering balance
+        // before an order settles. Defaults to 2 when at least two endpoints
+        // are configured, 1 when only one is (which is the old behaviour, and
+        // is warned about at load — one source means trusting one operator).
+        // Never exceeds rpcUrls.size().
+        int minConfirmations = 1;
         // For the order page. chainId names the network in the EIP-681 wallet
         // link (1 = Ethereum, 8453 = Base); 0 omits the link rather than
         // guessing. note is a short display hint ("lowest fees") — copy is