feat: switched to UUPS proxy pattern with admin management

README.md

@@ -162,10 +162,10 @@ The following benchmarks are for a single packet transfer without aggregation.
 | **Contract** | **Method** | **Description** | **Gas (groth16)** | **Gas (plonk)** |
 |:---:|:---:|:---:|:---:|:---:|
 | `ICS26Router.sol` | `sendPacket` | Initiating an IBC transfer with an `ERC20`. | ~160,500 | ~160,500 |
-| `ICS26Router.sol` | `recvPacket` | Receiving _back_ an `ERC20` token. | ~514,011 | ~597,875 |
-| `ICS26Router.sol` | `recvPacket` | Receiving a _new_ Cosmos token for the first time. (Deploying an `ERC20` contract) | ~1,364,451 | ~1,448,027 |
-| `ICS26Router.sol` | `ackPacket` | Acknowledging an ICS20 packet. | ~395,232 | ~478,997 |
-| `ICS26Router.sol` | `timeoutPacket` | Timing out an ICS20 packet | ~452,661 | ~536,368 |
+| `ICS26Router.sol` | `recvPacket` | Receiving _back_ an `ERC20` token. | ~514,404 | ~598,268 |
+| `ICS26Router.sol` | `recvPacket` | Receiving a _new_ Cosmos token for the first time. (Deploying an `ERC20` contract) | ~1,364,844 | ~1,448,420 |
+| `ICS26Router.sol` | `ackPacket` | Acknowledging an ICS20 packet. | ~395,625 | ~479,390 |
+| `ICS26Router.sol` | `timeoutPacket` | Timing out an ICS20 packet | ~452,966 | ~536,673 |
 
 ### Aggregated Packet Benchmarks
 
@@ -174,8 +174,8 @@ Since there is no meaningful difference in gas costs between plonk and groth16 i
 
 | **ICS26Router Method** | **Description** | **Avg Gas (25 packets)** | **Avg Gas (50 packets)** |
 |:---:|:---:|:---:|:---:|
-| `multicall/recvPacket` | Receiving _back_ an `ERC20` token. | ~185,583 | ~179,324 |
-| `multicall/ackPacket` | Acknowledging an ICS20 packet. | ~96,148 | ~90,485 |
+| `multicall/recvPacket` | Receiving _back_ an `ERC20` token. | ~185,876 | ~179,615 |
+| `multicall/ackPacket` | Acknowledging an ICS20 packet. | ~96,436 | ~90,776 |
 
 Note: These gas benchmarks are with Groth16.
 

abi/ICS20Transfer.json

@@ -4,6 +4,19 @@
     "inputs": [],
     "stateMutability": "nonpayable"
   },
+  {
+    "type": "function",
+    "name": "UPGRADE_INTERFACE_VERSION",
+    "inputs": [],
+    "outputs": [
+      {
+        "name": "",
+        "type": "string",
+        "internalType": "string"
+      }
+    ],
+    "stateMutability": "view"
+  },
   {
     "type": "function",
     "name": "escrow",
@@ -452,6 +465,19 @@
     "outputs": [],
     "stateMutability": "nonpayable"
   },
+  {
+    "type": "function",
+    "name": "proxiableUUID",
+    "inputs": [],
+    "outputs": [
+      {
+        "name": "",
+        "type": "bytes32",
+        "internalType": "bytes32"
+      }
+    ],
+    "stateMutability": "view"
+  },
   {
     "type": "function",
     "name": "sendTransfer",
@@ -508,6 +534,24 @@
     ],
     "stateMutability": "nonpayable"
   },
+  {
+    "type": "function",
+    "name": "upgradeToAndCall",
+    "inputs": [
+      {
+        "name": "newImplementation",
+        "type": "address",
+        "internalType": "address"
+      },
+      {
+        "name": "data",
+        "type": "bytes",
+        "internalType": "bytes"
+      }
+    ],
+    "outputs": [],
+    "stateMutability": "payable"
+  },
   {
     "type": "event",
     "name": "Initialized",
@@ -521,6 +565,19 @@
     ],
     "anonymous": false
   },
+  {
+    "type": "event",
+    "name": "Upgraded",
+    "inputs": [
+      {
+        "name": "implementation",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
+      }
+    ],
+    "anonymous": false
+  },
   {
     "type": "error",
     "name": "AddressEmptyCode",
@@ -532,6 +589,22 @@
       }
     ]
   },
+  {
+    "type": "error",
+    "name": "ERC1967InvalidImplementation",
+    "inputs": [
+      {
+        "name": "implementation",
+        "type": "address",
+        "internalType": "address"
+      }
+    ]
+  },
+  {
+    "type": "error",
+    "name": "ERC1967NonPayable",
+    "inputs": []
+  },
   {
     "type": "error",
     "name": "FailedCall",
@@ -665,5 +738,21 @@
         "internalType": "address"
       }
     ]
+  },
+  {
+    "type": "error",
+    "name": "UUPSUnauthorizedCallContext",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "UUPSUnsupportedProxiableUUID",
+    "inputs": [
+      {
+        "name": "slot",
+        "type": "bytes32",
+        "internalType": "bytes32"
+      }
+    ]
   }
 ]