feat: add MetaMask wallet module

Adds a MetaMask module for the Stellar Wallets Kit using the MetaMask
Multichain API. Supports connect, signTransaction, signAuthEntry, and
signMessage via stellar:pubnet and stellar:testnet CAIP-2 scopes.

Also adds MetaMask to defaultModules and sep43Modules.

Author: 0xEdouardEth

src/deno.json

@@ -29,6 +29,8 @@
     "@twind/preset-tailwind": "npm:@twind/preset-tailwind@1.1.4",
     "@walletconnect/sign-client": "npm:@walletconnect/sign-client@2.23.0",
     "@walletconnect/types": "npm:@walletconnect/types@2.23.9",
+    "@metamask/multichain-api-client": "npm:@metamask/multichain-api-client@^0.11.0",
+    "@metamask/connect-stellar": "npm:@metamask/connect-stellar@^0.2.0",
     "htm": "npm:htm@3.1.1",
     "preact": "npm:preact@^10.29.0"
   },
@@ -51,6 +53,7 @@
     "./modules/trezor": "./sdk/modules/trezor.module.ts",
     "./modules/wallet-connect": "./sdk/modules/wallet-connect.module.ts",
     "./modules/xbull": "./sdk/modules/xbull.module.ts",
+    "./modules/metamask": "./sdk/modules/metamask.module.ts",
     "./modules/utils": "./sdk/modules/utils.ts"
   },
   "fmt": {

src/deno.lock

@@ -0,0 +1 @@
+export { MetaMaskModule, METAMASK_ID } from "@metamask/connect-stellar";

src/sdk/modules/metamask.module.ts

@@ -6,6 +6,7 @@ import { RabetModule } from "./rabet.module.ts";
 import { xBullModule } from "./xbull.module.ts";
 import { HanaModule } from "./hana.module.ts";
 import { KleverModule } from "./klever.module.ts";
+import { MetaMaskModule } from "./metamask.module.ts";
 import { OneKeyModule } from "./onekey.module.ts";
 import { BitgetModule } from "./bitget.module.ts";
 
@@ -29,6 +30,7 @@ export function defaultModules(opts?: {
     new KleverModule(),
     new OneKeyModule(),
     new BitgetModule(),
+    new MetaMaskModule(),
   ];
   return opts?.filterBy ? modules.filter(opts.filterBy) : modules;
 }
@@ -41,6 +43,6 @@ export function defaultModules(opts?: {
  * If your module requires some extra polyfill or configuration then the user of the kit needs to include it manually.
  */
 export function sep43Modules(opts?: { filterBy: (module: ModuleInterface) => boolean }): ModuleInterface[] {
-  const modules: ModuleInterface[] = [new FreighterModule()];
+  const modules: ModuleInterface[] = [new FreighterModule(), new MetaMaskModule()];
   return opts?.filterBy ? modules.filter(opts.filterBy) : modules;
 }