feat(common): add garnet chain (#2738)

.changeset/tall-steaks-give.md

@@ -0,0 +1,9 @@
+---
+"@latticexyz/common": patch
+---
+
+Added Garnet chain config and deprecated Lattice Testnet.
+
+```ts
+import { garnet } from "@latticexyz/common/chains";
+```

packages/common/src/chains/garnet.ts

@@ -0,0 +1,52 @@
+import { chainConfig } from "viem/op-stack";
+import type { MUDChain } from "./types";
+
+const sourceId = 17000; // Holesky
+
+export const garnet = {
+  ...chainConfig,
+  id: 17069,
+  sourceId,
+  name: "Garnet Holesky",
+  testnet: true,
+  nativeCurrency: { name: "Ether", symbol: "ETH", decimals: 18 },
+  rpcUrls: {
+    default: {
+      http: ["https://rpc.garnetchain.com"],
+      webSocket: ["wss://rpc.garnetchain.com"],
+    },
+  },
+  blockExplorers: {
+    default: {
+      name: "Blockscout",
+      url: "https://explorer.garnetchain.com",
+    },
+    blockscout: {
+      name: "Blockscout",
+      url: "https://garnet.blockscout.com",
+    },
+  },
+  contracts: {
+    multicall3: {
+      address: "0xca11bde05977b3631167028862be2a173976ca11",
+    },
+    portal: {
+      [sourceId]: {
+        address: "0x57ee40586fbE286AfC75E67cb69511A6D9aF5909",
+        blockCreated: 1274684,
+      },
+    },
+    l2OutputOracle: {
+      [sourceId]: {
+        address: "0xCb8E7AC561b8EF04F2a15865e9fbc0766FEF569B",
+        blockCreated: 1274684,
+      },
+    },
+    l1StandardBridge: {
+      [sourceId]: {
+        address: "0x09bcDd311FE398F80a78BE37E489f5D440DB95DE",
+        blockCreated: 1274684,
+      },
+    },
+  },
+} as const satisfies MUDChain;

packages/common/src/chains/index.ts

@@ -1,3 +1,4 @@
 export type { MUDChain } from "./types";
-export { latticeTestnet } from "./latticeTestnet";
 export { mudFoundry } from "./mudFoundry";
+export { latticeTestnet } from "./latticeTestnet";
+export { garnet } from "./garnet";

packages/common/src/chains/latticeTestnet.ts

@@ -1,5 +1,6 @@
 import type { MUDChain } from "./types";
 
+/** @deprecated This chain is deprecated and will be going offline soon. Please switch to Garnet! */
 export const latticeTestnet = {
   name: "Lattice Testnet",
   id: 4242,