feat: linting + prettier

.eslintrc

@@ -0,0 +1,40 @@
+{
+  "root": true,
+  "parser": "@typescript-eslint/parser",
+  "plugins": ["@typescript-eslint", "prettier"],
+  "extends": [
+    "eslint:recommended",
+    "plugin:@typescript-eslint/recommended",
+    "prettier"
+  ],
+  "rules": {
+    "prettier/prettier": "error",
+    "no-constant-condition": "off",
+    "@typescript-eslint/explicit-function-return-type": "off",
+    "@typescript-eslint/no-explicit-any": "off",
+    "@typescript-eslint/no-unused-vars": ["warn", { "argsIgnorePattern": "^_" }],
+    "no-console": ["warn", { "allow": ["warn", "error"] }],
+    "curly": ["error", "all"],
+    "eqeqeq": ["error", "always"],
+    "no-floating-decimal": "error",
+    "no-var": "error",
+    "prefer-const": "error"
+  },
+  "env": {
+    "browser": true,
+    "node": true,
+    "es6": true
+  },
+  "parserOptions": {
+    "ecmaVersion": 2020,
+    "sourceType": "module"
+  },
+  "overrides": [
+    {
+      "files": ["test/**/*", "src/utils/keypair.ts"],
+      "rules": {
+        "no-console": "off"
+      }
+    }
+  ]
+}