style: add eslint and eslintignore target

.eslintignore

@@ -0,0 +1,2 @@
+node_modules/
+build/

.eslintrc.json

@@ -0,0 +1,41 @@
+{
+    "env": {
+        "es2021": true,
+        "node": true,
+        "commonjs": true
+    },
+    "extends": [
+        "eslint:recommended",
+        "plugin:@typescript-eslint/recommended"
+    ],
+    "parser": "@typescript-eslint/parser",
+    "parserOptions": {
+        "ecmaVersion": 12,
+        "sourceType": "module"
+    },
+    "plugins": [
+        "@typescript-eslint"
+    ],
+    "rules": {
+        "linebreak-style": 0,
+        "quotes": [
+            "error",
+            "double"
+        ],
+        "semi": [
+            "error",
+            "always"
+        ],
+        "no-empty": "error",
+        "no-func-assign": "error",
+        "no-case-declarations": "off",
+        "no-unreachable": "error",
+        "no-eval": "error",
+        "no-global-assign": "error",
+        "@typescript-eslint/no-explicit-any": ["off"],
+        "indent": [
+            "error",
+            2
+        ]
+    }
+}