feat: add zksync-101 template

templates/101/.env.example

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+# DO NOT PUT REAL PRIVATE KEYS INTO THIS FILE
+# This is a local rich wallet private key for development and learning purposes only
+WALLET_PRIVATE_KEY=0x7726827caac94a7f9e1b160f7ea819f172f7b6f9d2a97f992c38edeab82d4110

templates/101/.gitignore

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+# dotenv environment variable files
+
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+.env.*
+!.env.example
+
+# Finder (MacOS) folder config
+.DS_Store
+
+node_modules/
+
+era_test_node.log
+
+package-lock.json
+node_modules
+typechain-types
+typechain
+
+**/.upgradable/
+build-test/
+dist
+artifacts-zk/
+cache-zk/
+deployments-zk/
+deployments/
+
+# Hardhat files
+cache
+artifacts

templates/101/.npmrc

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+legacy-peer-deps=true

templates/101/.vscode/extensions.json

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+{
+	"recommendations": [
+	  "christian-kohler.npm-intellisense",
+	  "christian-kohler.path-intellisense",
+	  "dbaeumer.vscode-eslint",
+	  "editorconfig.editor",
+	  "esbenp.prettier-vscode",
+	  "mikestead.dotenv",
+	  "yoavbls.pretty-ts-errors"
+	],
+	"unwantedRecommendations": []
+  }

templates/101/.vscode/settings.json

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+{
+    "editor.defaultFormatter": "esbenp.prettier-vscode",
+    "files.trimTrailingWhitespace": true,
+    "editor.formatOnType": false,
+    "editor.formatOnPaste": false,
+    "editor.formatOnSave": true,
+    "editor.formatOnSaveMode": "file",
+    "editor.tabSize": 2,
+    "editor.insertSpaces": true,
+    "files.eol": "\n",
+  }

templates/101/LICENSE

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+MIT License
+
+Copyright (c) 2024 Matter Labs
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

templates/101/README.md

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+# ZKsync 101
+
+This project was scaffolded with [ZKsync CLI](https://github.com/matter-labs/zksync-cli).
+
+ZKsync 101 is a quick start template to help you learn how to
+be a super developer using ZKsync CLI to build projects in the
+ZKsync ecosystem!
+
+This project is a Nodejs project that uses hardhat, viem, and solidity.
+You will learn how to build, deploy and test smart contracts with hardhat
+onto the ZKsync in memory node and use ZKsync CLI to interact with the contracts.
+
+## Project Layout
+
+- `/contracts`: Contains solidity smart contracts.
+- `/deploy`: Scripts for contract deployment and interaction.
+- `/test`: Test files.
+- `hardhat.config.ts`: Configuration settings, the default network is set to "inMemoryNode".
+
+## How to Use
+
+1. Install dependencies with `npm install --force`.
+
+2. Configure your ZKsync CLI to use the In memory node settings for dev.
+
+   ```bash
+   zksync-cli dev config
+   ```
+
+3. Start up a local in-memory node with ZKsync CLI with the following command:
+
+   ```bash
+   zksync-cli dev start
+   ```
+
+4. Follow along on ZKsync Docs in our [ZKsync 101](https://docs.zksync.io/build/start-coding/zksync-101)!
+
+### Environment Settings
+
+This project pulls in environment variables from `.env` files.
+
+Rename `.env.example` to `.env`, the provided private key is a local rich wallet
+that is available in the local in-memory node.
+
+```txt
+WALLET_PRIVATE_KEY=your_private_key_here...
+```
+
+### Local Tests
+
+Running `npm run test` by default runs the [ZKsync In-memory Node](https://docs.zksync.io/build/test-and-debug/in-memory-node) provided by the [@matterlabs/hardhat-zksync-node](https://docs.zksync.io/build/tooling/hardhat/hardhat-zksync-node) tool.
+
+Important: ZKsync In-memory Node currently supports only the L2 node. If contracts also need L1, use another testing environment like Dockerized Node.
+Refer to [test documentation](https://docs.zksync.io/build/test-and-debug) for details.
+
+## Useful Links
+
+- [Docs](https://docs.zksync.io)
+- [Official Site](https://zksync.io/)
+- [GitHub](https://github.com/matter-labs)
+- [Twitter](https://twitter.com/zksync)
+- [Discord](https://join.zksync.dev/)
+
+## License
+
+This project is under the [MIT](./LICENSE) license.

templates/101/contracts/1-hello-zksync/CrowdfundingCampaign.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+contract CrowdfundingCampaign {
+    address public owner;
+    uint256 private fundingGoal;
+    uint256 private totalFundsRaised;
+    mapping(address => uint256) private contributions;
+
+    event ContributionReceived(address contributor, uint256 amount);
+    event GoalReached(uint256 totalFundsRaised);
+
+    constructor(uint256 _fundingGoal) {
+        owner = msg.sender;
+        fundingGoal = _fundingGoal;
+    }
+
+    function contribute() public payable {
+        require(msg.value > 0, "Contribution must be greater than 0");
+        contributions[msg.sender] += msg.value;
+        totalFundsRaised += msg.value;
+
+        emit ContributionReceived(msg.sender, msg.value);
+
+        if (totalFundsRaised >= fundingGoal) {
+            emit GoalReached(totalFundsRaised);
+        }
+    }
+
+    function withdrawFunds() public {
+        require(msg.sender == owner, "Only the owner can withdraw funds");
+        require(totalFundsRaised >= fundingGoal, "Funding goal not reached");
+
+        uint256 amount = address(this).balance;
+        totalFundsRaised = 0;
+
+        (bool success, ) = payable(owner).call{value: amount}("");
+        require(success, "Transfer failed.");
+    }
+
+    function getTotalFundsRaised() public view returns (uint256) {
+        return totalFundsRaised;
+    }
+
+    function getFundingGoal() public view returns (uint256) {
+        return fundingGoal;
+    }
+}

templates/101/contracts/2-contract-factory/CrowdfundingFactory.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+// Crowdfunding campaign contract
+import "../1-hello-zksync/CrowdfundingCampaign.sol";
+
+// Factory contract to create and manage crowdfunding campaigns
+contract CrowdfundingFactory {
+    CrowdfundingCampaign[] private campaigns;
+
+    event CampaignCreated(address campaignAddress, uint256 fundingGoal);
+
+    function createCampaign(uint256 fundingGoal) public {
+        CrowdfundingCampaign newCampaign = new CrowdfundingCampaign(
+            fundingGoal
+        );
+        campaigns.push(newCampaign);
+
+        emit CampaignCreated(address(newCampaign), fundingGoal);
+    }
+
+    function getCampaigns()
+        public
+        view
+        returns (CrowdfundingCampaign[] memory)
+    {
+        return campaigns;
+    }
+}

templates/101/contracts/3-proxy-contracts/beacon/BeaconCrowdfundingCampaign.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+import "@openzeppelin/contracts/proxy/utils/Initializable.sol";
+
+// The BeaconCrowdfundingCampaign contract implements
+// the Initializable interface from OpenZeppelin
+contract BeaconCrowdfundingCampaign is Initializable {
+    address public owner;
+    uint256 private fundingGoal;
+    uint256 private totalFundsRaised;
+    mapping(address => uint256) private contributions;
+
+    event ContributionReceived(address contributor, uint256 amount);
+    event GoalReached(uint256 totalFundsRaised);
+
+    // The `initialize` function replaces the constructor in upgradeable contracts
+    function initialize(uint256 _fundingGoal) public initializer {
+        owner = msg.sender;
+        fundingGoal = _fundingGoal;
+    }
+
+    function contribute() public payable {
+        require(msg.value > 0, "Contribution must be greater than 0");
+        contributions[msg.sender] += msg.value;
+        totalFundsRaised += msg.value;
+
+        emit ContributionReceived(msg.sender, msg.value);
+
+        if (totalFundsRaised >= fundingGoal) {
+            emit GoalReached(totalFundsRaised);
+        }
+    }
+
+    function withdrawFunds() public {
+        require(msg.sender == owner, "Only the owner can withdraw funds");
+        require(totalFundsRaised >= fundingGoal, "Funding goal not reached");
+
+        uint256 amount = address(this).balance;
+        totalFundsRaised = 0;
+
+        (bool success, ) = payable(owner).call{value: amount}("");
+        require(success, "Transfer failed.");
+    }
+
+    function getTotalFundsRaised() public view returns (uint256) {
+        return totalFundsRaised;
+    }
+
+    function getFundingGoal() public view returns (uint256) {
+        return fundingGoal;
+    }
+}

templates/101/contracts/3-proxy-contracts/beacon/V2_BeaconCrowdfundingCampaign.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+import "@openzeppelin/contracts/proxy/utils/Initializable.sol";
+
+// The BeaconCrowdfundingCampaign contract implements
+// the Initializable interface from OpenZeppelin
+contract V2_BeaconCrowdfundingCampaign is Initializable {
+    address public owner;
+    uint256 private fundingGoal;
+    uint256 private totalFundsRaised;
+    mapping(address => uint256) private contributions;
+
+    // In V2 we add a deadline for the campaign
+    uint256 public deadline;
+    // We also add a flag to check if the V2 contract has been initialized
+    bool private initializedV2;
+
+    event ContributionReceived(address contributor, uint256 amount);
+    event GoalReached(uint256 totalFundsRaised);
+
+    // Original initialization function for V1
+    function initialize(uint256 _fundingGoal) public initializer {
+        owner = msg.sender;
+        fundingGoal = _fundingGoal;
+    }
+
+    // Additional initialization function for V2
+    function initializeV2(uint256 _duration) public {
+        require(!initializedV2, "V2 already initialized");
+        require(msg.sender == owner, "Only the owner can initialize V2");
+
+        deadline = block.timestamp + _duration;
+        initializedV2 = true;
+    }
+
+    // Modifier to check if the campaign is still within the deadline
+    // A modifier is a function that is executed
+    // before the function that uses it
+    modifier withinDeadline() {
+        require(block.timestamp <= deadline, "Funding period has ended");
+        _;
+    }
+
+    // We use the `withinDeadline` modifier to ensure
+    // that contributions are only accepted within the deadlin
+    function contribute() public payable withinDeadline {
+        require(msg.value > 0, "Contribution must be greater than 0");
+        contributions[msg.sender] += msg.value;
+        totalFundsRaised += msg.value;
+
+        emit ContributionReceived(msg.sender, msg.value);
+
+        if (totalFundsRaised >= fundingGoal) {
+            emit GoalReached(totalFundsRaised);
+        }
+    }
+
+    // We add a new function to extend the deadline
+    // only by the owner of the campaign
+    function extendDeadline(uint256 _newDuration) public {
+        require(msg.sender == owner, "Only the owner can extend the deadline");
+        deadline = block.timestamp + _newDuration;
+    }
+
+    function withdrawFunds() public {
+        require(msg.sender == owner, "Only the owner can withdraw funds");
+        require(totalFundsRaised >= fundingGoal, "Funding goal not reached");
+
+        uint256 amount = address(this).balance;
+        totalFundsRaised = 0;
+
+        (bool success, ) = payable(owner).call{value: amount}("");
+        require(success, "Transfer failed.");
+    }
+
+    function getTotalFundsRaised() public view returns (uint256) {
+        return totalFundsRaised;
+    }
+
+    function getFundingGoal() public view returns (uint256) {
+        return fundingGoal;
+    }
+}