Ether support

.github/CODEOWNERS

@@ -0,0 +1 @@
+* @mriynyk

.github/PULL_REQUEST_TEMPLATE.md

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+## Issue
+
+Describe the issue here.
+
+### Summary:
+
+- create ...
+- fix ...
+- implement ...
+
+
+### Useful Links:
+
+- [Source name](source_link);
+- [Source name](source_link);

.github/workflows/ci.yml

@@ -0,0 +1,42 @@
+name: CI
+
+on:
+  push:
+    branches: ["master"]
+  pull_request:
+    branches: ["master"]
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: "24.6.0"
+
+      - name: Install Node dependencies
+        run: npm ci
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.13.7"
+
+      - name: Install Python dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+
+      - name: Compile
+        run: npm run compile
+
+      - name: Run tests
+        run: npm run test
+
+      - name: Run slither
+        run: npm run slither

.npmrc

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+engine-strict=true

.nvmrc

@@ -0,0 +1 @@
+v24.6.0

.prettierrc

@@ -9,7 +9,7 @@
     {
       "files": "*.sol",
       "options": {
-        "printWidth": 120,
+        "printWidth": 110,
         "tabWidth": 4,
         "useTabs": false,
         "singleQuote": false,

.solhint.json

@@ -11,13 +11,11 @@
                 "ignoreConstructors": true
             }
         ],
-        "reason-string": [
-            "warn",
-            {
-                "maxLength": 48
-            }
-        ],
-        "no-empty-blocks": "off",
-        "func-name-mixedcase": "off"
+        "use-natspec": "off",
+        "gas-small-strings": "off",
+        "gas-indexed-events": "off",
+        "function-max-lines": "off",
+        "gas-strict-inequalities": "off",
+        "no-inline-assembly": "off"
     }
 }

.solhintignore

@@ -1 +1,2 @@
 node_modules
+contracts/tests/**