feat: freezing stewards (#24)

* feat: initial files and aip text

* chore: add deployed addresses and fix links on aip text

* fix: aip text

* fix: aip text title

src/20231101_Multi_FreezeStewards/FreezeStewards.md

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+---
+title: "Activate Freezing Steward on v3 missing networks"
+author: "BGD Labs @bgdlabs"
+discussions: "https://governance.aave.com/t/bgd-technical-maintenance-proposals/15274"
+---
+
+## Summary
+
+Activates the `FreezingSteward` smart contract across all the networks of the protocol, which allows the emergency admin to freeze reserves, as expected.
+
+Currently, there are freezing stewards live for all the networks except Avalanche, Metis, and Base, and this proposal synchronizes the missing ones.
+
+## Motivation
+
+This is a follow-up to [AIP-319](https://app.aave.com/governance/proposal/319/) where on some networks (Avalanche, Metis, and Base) the proposal wasn’t executed. We now resubmit the proposal as an operational update to maintain security and consistency across Aave V3.
+
+## Specification
+
+Adds the `FreezingSteward` contract as `RISK_ADMIN` on the canonical Aave V3 deployments on the following networks:
+- Avalanche
+- Metis
+- Base
+
+The `FreezingSteward` is identical to the one currently deployed on [Ethereum](https://etherscan.io/address/0x2eE68ACb6A1319de1b49DC139894644E424fefD6#code), [Polygon](https://polygonscan.com/address/0xa7b40ed4dfAC9255EA9Dd218A3874f380D9FbBEB), [Optimism](https://optimistic.etherscan.io/address/0x3829943c53F2d00e20B58475aF19716724bF90Ba), [Arbitrum](https://arbiscan.io/address/0xe59470b3be3293534603487e00a44c72f2cd466d) and only allows for entities holding `EMERGENCY_ADMIN` role on `ACLManager` to freeze reserves.
+
+## References
+
+- Implementation: [AaveV3Avalanche](https://github.com/bgd-labs/aave-proposals/blob/eb3b1855f4d9e40d9a84bba5ee45b1c449f219ec/src/20230907_AaveV3_Multi_FreezeStewards/AaveV3_Avalanche_FreezeStewards_20230907.sol), [AaveV3Metis](https://github.com/bgd-labs/aave-proposals/blob/eb3b1855f4d9e40d9a84bba5ee45b1c449f219ec/src/20230907_AaveV3_Multi_FreezeStewards/AaveV3_Metis_FreezeStewards_20230907.sol), [AaveV3Base](https://github.com/bgd-labs/aave-proposals/blob/eb3b1855f4d9e40d9a84bba5ee45b1c449f219ec/src/20230907_AaveV3_Multi_FreezeStewards/AaveV3_Base_FreezeStewards_20230907.sol)
+- Tests: [AaveV3Avalanche](https://github.com/bgd-labs/aave-proposals/blob/eb3b1855f4d9e40d9a84bba5ee45b1c449f219ec/src/20230907_AaveV3_Multi_FreezeStewards/AaveV3_Avalanche_FreezeStewards_20230907.t.sol), [AaveV3Metis](https://github.com/bgd-labs/aave-proposals/blob/eb3b1855f4d9e40d9a84bba5ee45b1c449f219ec/src/20230907_AaveV3_Multi_FreezeStewards/AaveV3_Metis_FreezeStewards_20230907.t.sol), [AaveV3Base](https://github.com/bgd-labs/aave-proposals/blob/eb3b1855f4d9e40d9a84bba5ee45b1c449f219ec/src/20230907_AaveV3_Multi_FreezeStewards/AaveV3_Base_FreezeStewards_20230907.t.sol)
+- [Discussion](https://governance.aave.com/t/bgd-technical-maintenance-proposals/15274)
+
+## Copyright
+
+Copyright and related rights waived via [CC0](https://creativecommons.org/publicdomain/zero/1.0/).

src/20231101_Multi_FreezeStewards/FreezeStewards_20231101.s.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+import {GovV3Helpers, IPayloadsControllerCore, PayloadsControllerUtils} from 'aave-helpers/GovV3Helpers.sol';
+import {EthereumScript, AvalancheScript, MetisScript, BaseScript} from 'aave-helpers/ScriptUtils.sol';
+
+/**
+ * @dev Create Proposal
+ * command: make deploy-ledger contract=src/20231101_Multi_FreezeStewards/FreezeStewards_20231101.s.sol:CreateProposal chain=mainnet
+ */
+contract CreateProposal is EthereumScript {
+  function run() external {
+    // create payloads
+    PayloadsControllerUtils.Payload[] memory payloads = new PayloadsControllerUtils.Payload[](3);
+
+    // compose actions for validation
+    IPayloadsControllerCore.ExecutionAction[]
+      memory actionsAvalanche = new IPayloadsControllerCore.ExecutionAction[](1);
+    actionsAvalanche[0] = GovV3Helpers.buildAction(0xa3255CfE96D192dDe036c30b10AF9a29bb358157);
+    payloads[0] = GovV3Helpers.buildAvalanchePayload(vm, actionsAvalanche);
+
+    IPayloadsControllerCore.ExecutionAction[]
+      memory actionsMetis = new IPayloadsControllerCore.ExecutionAction[](1);
+    actionsMetis[0] = GovV3Helpers.buildAction(0x0f24aF3ea7460E09E33B2e9814Df5856433BE80D);
+    payloads[1] = GovV3Helpers.buildMetisPayload(vm, actionsMetis);
+
+    IPayloadsControllerCore.ExecutionAction[]
+      memory actionsBase = new IPayloadsControllerCore.ExecutionAction[](1);
+    actionsBase[0] = GovV3Helpers.buildAction(0x889c0cc3283DB588A34E89Ad1E8F25B0fc827b4b);
+    payloads[2] = GovV3Helpers.buildBasePayload(vm, actionsBase);
+
+    // create proposal
+    vm.startBroadcast();
+    GovV3Helpers.createProposal2_5(
+      payloads,
+      GovV3Helpers.ipfsHashFile(vm, 'src/20231101_Multi_FreezeStewards/FreezeStewards.md')
+    );
+  }
+}

src/20231101_Multi_FreezeStewards/config.json

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+{
+  "rootOptions": {
+    "pools": [
+      "AaveV3Avalanche",
+      "AaveV3Metis",
+      "AaveV3Base"
+    ],
+    "title": "Freeze Stewards",
+    "shortName": "FreezeStewards",
+    "date": "20231101",
+    "author": "BGD Labs @bgdlabs",
+    "discussion": "https://governance.aave.com/t/bgd-technical-maintenance-proposals/15274",
+    "snapshot": ""
+  },
+  "poolOptions": {
+    "AaveV3Avalanche": {
+      "configs": {
+        "OTHERS": {}
+      },
+      "features": [
+        "OTHERS"
+      ]
+    },
+    "AaveV3Metis": {
+      "configs": {
+        "OTHERS": {}
+      },
+      "features": [
+        "OTHERS"
+      ]
+    },
+    "AaveV3Base": {
+      "configs": {
+        "OTHERS": {}
+      },
+      "features": [
+        "OTHERS"
+      ]
+    }
+  }
+}