feat: add initial skeleton for 6900 account support

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+  "typescript.tsdk": "node_modules/typescript/lib"
+}

packages/accounts/src/index.ts

@@ -20,3 +20,11 @@ export type { KernelBaseValidatorParams } from "./kernel-zerodev/validator/base.
 //light-account exports
 export { LightSmartContractAccount } from "./light-account/account.js";
 export { getDefaultLightAccountFactoryAddress } from "./light-account/utils.js";
+
+// msca exports
+export { ModularSmartContractAccount } from "./msca/account.js";
+export type { ModularSmartContractAccountParams } from "./msca/account.js";
+export {
+  MultiOwnerPlugin,
+  MultiOwnerPluginSigner,
+} from "./msca/plugins/multi-owner/index.js";

packages/accounts/src/msca/abis/IStandardExecutor.ts

@@ -0,0 +1,74 @@
+export const IStandardExecutorAbi = [
+  {
+    inputs: [
+      {
+        components: [
+          {
+            internalType: "address",
+            name: "target",
+            type: "address",
+          },
+          {
+            internalType: "uint256",
+            name: "value",
+            type: "uint256",
+          },
+          {
+            internalType: "bytes",
+            name: "data",
+            type: "bytes",
+          },
+        ],
+        internalType: "struct Execution",
+        name: "execution",
+        type: "tuple",
+      },
+    ],
+    name: "execute",
+    outputs: [
+      {
+        internalType: "bytes",
+        name: "",
+        type: "bytes",
+      },
+    ],
+    stateMutability: "payable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        components: [
+          {
+            internalType: "address",
+            name: "target",
+            type: "address",
+          },
+          {
+            internalType: "uint256",
+            name: "value",
+            type: "uint256",
+          },
+          {
+            internalType: "bytes",
+            name: "data",
+            type: "bytes",
+          },
+        ],
+        internalType: "struct Execution[]",
+        name: "executions",
+        type: "tuple[]",
+      },
+    ],
+    name: "executeBatch",
+    outputs: [
+      {
+        internalType: "bytes[]",
+        name: "",
+        type: "bytes[]",
+      },
+    ],
+    stateMutability: "payable",
+    type: "function",
+  },
+] as const;

packages/accounts/src/msca/abis/MultiOwnerMSCAFactory.ts

@@ -0,0 +1,237 @@
+export const MultiOwnerMSCAFactoryAbi = [
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "owner",
+        type: "address",
+      },
+      {
+        internalType: "address",
+        name: "multiOwnerPlugin",
+        type: "address",
+      },
+      {
+        internalType: "address",
+        name: "implementation",
+        type: "address",
+      },
+      {
+        internalType: "bytes32",
+        name: "manifestHash",
+        type: "bytes32",
+      },
+      {
+        internalType: "contract IEntryPoint",
+        name: "entryPoint",
+        type: "address",
+      },
+    ],
+    stateMutability: "nonpayable",
+    type: "constructor",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        internalType: "address",
+        name: "previousOwner",
+        type: "address",
+      },
+      {
+        indexed: true,
+        internalType: "address",
+        name: "newOwner",
+        type: "address",
+      },
+    ],
+    name: "OwnershipTransferred",
+    type: "event",
+  },
+  {
+    inputs: [],
+    name: "ENTRYPOINT",
+    outputs: [
+      {
+        internalType: "contract IEntryPoint",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "IMPL",
+    outputs: [
+      {
+        internalType: "address",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "MULTI_OWNER_PLUGIN",
+    outputs: [
+      {
+        internalType: "address",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "uint32",
+        name: "unstakeDelay",
+        type: "uint32",
+      },
+      {
+        internalType: "uint256",
+        name: "amount",
+        type: "uint256",
+      },
+    ],
+    name: "addStake",
+    outputs: [],
+    stateMutability: "payable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "uint256",
+        name: "salt",
+        type: "uint256",
+      },
+      {
+        internalType: "address[]",
+        name: "owners",
+        type: "address[]",
+      },
+    ],
+    name: "createAccount",
+    outputs: [
+      {
+        internalType: "address",
+        name: "addr",
+        type: "address",
+      },
+    ],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "uint256",
+        name: "salt",
+        type: "uint256",
+      },
+      {
+        internalType: "address[]",
+        name: "owners",
+        type: "address[]",
+      },
+    ],
+    name: "getAddress",
+    outputs: [
+      {
+        internalType: "address",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "owner",
+    outputs: [
+      {
+        internalType: "address",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "renounceOwnership",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "newOwner",
+        type: "address",
+      },
+    ],
+    name: "transferOwnership",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "unlockStake",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address payable",
+        name: "to",
+        type: "address",
+      },
+      {
+        internalType: "address",
+        name: "token",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "amount",
+        type: "uint256",
+      },
+    ],
+    name: "withdraw",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address payable",
+        name: "to",
+        type: "address",
+      },
+    ],
+    name: "withdrawStake",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    stateMutability: "payable",
+    type: "receive",
+  },
+] as const;