feat: build proxy contracts

.github/workflows/artifacts-dev.yaml

@@ -35,6 +35,8 @@ jobs:
 
           mkdir -p ./artifacts/zend-token/$COMMIT_HASH
           cp ./out/ZendToken.sol/ZendToken.json ./artifacts/zend-token/$COMMIT_HASH/
+          cp ./out/TransparentUpgradeableProxy.sol/TransparentUpgradeableProxy.json ./artifacts/zend-token/$COMMIT_HASH/
+          cp ./out/ProxyAdmin.sol/ProxyAdmin.json ./artifacts/zend-token/$COMMIT_HASH/
           (cd ./artifacts/zend-token/ && rm -rf ./latest && ln -s ./$COMMIT_HASH ./latest)
 
           cd ./artifacts

.github/workflows/artifacts-release.yaml

@@ -35,6 +35,8 @@ jobs:
 
           mkdir -p ./artifacts/zend-token/$COMMIT_HASH
           cp ./out/ZendToken.sol/ZendToken.json ./artifacts/zend-token/$COMMIT_HASH/
+          cp ./out/TransparentUpgradeableProxy.sol/TransparentUpgradeableProxy.json ./artifacts/zend-token/$COMMIT_HASH/
+          cp ./out/ProxyAdmin.sol/ProxyAdmin.json ./artifacts/zend-token/$COMMIT_HASH/
           (cd ./artifacts/zend-token/ && rm -rf ./latest && ln -s ./$COMMIT_HASH ./latest)
 
           cd ./artifacts

.gitmodules

@@ -4,3 +4,6 @@
 [submodule "lib/openzeppelin-contracts-upgradeable"]
 	path = lib/openzeppelin-contracts-upgradeable
 	url = https://github.com/OpenZeppelin/openzeppelin-contracts-upgradeable
+[submodule "lib/openzeppelin-contracts"]
+	path = lib/openzeppelin-contracts
+	url = https://github.com/OpenZeppelin/openzeppelin-contracts

foundry.toml

@@ -4,6 +4,7 @@ out = "out"
 libs = ["lib"]
 
 remappings = [
+    "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
     "@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
 ]
 

src/Proxy.sol

@@ -0,0 +1,8 @@
+// SPDX-License-Identifier: MIT OR Apache-2.0
+pragma solidity =0.8.21;
+
+import "@openzeppelin/contracts/proxy/transparent/ProxyAdmin.sol";
+import "@openzeppelin/contracts/proxy/transparent/TransparentUpgradeableProxy.sol";
+
+// This contract exists only to bring `ProxyAdmin` and `TransparentUpgradeableProxy` into scope.
+contract Proxy {}