Add Husky pre-commit with eslint and Sentry env convention (M0).

Co-authored-by: Cursor <cursoragent@cursor.com>

eslint.config.mjs

@@ -0,0 +1,31 @@
+import eslint from "@eslint/js";
+import reactHooks from "eslint-plugin-react-hooks";
+import globals from "globals";
+import tseslint from "typescript-eslint";
+
+export default tseslint.config(
+  { ignores: ["web/dist/**", "data/**", "**/node_modules/**"] },
+  {
+    files: ["src/**/*.ts"],
+    extends: [eslint.configs.recommended, ...tseslint.configs.recommended],
+    languageOptions: {
+      ecmaVersion: 2022,
+      sourceType: "module",
+      globals: globals.node,
+    },
+  },
+  {
+    files: ["web/src/**/*.{ts,tsx}"],
+    extends: [eslint.configs.recommended, ...tseslint.configs.recommended],
+    plugins: { "react-hooks": reactHooks },
+    languageOptions: {
+      ecmaVersion: 2022,
+      sourceType: "module",
+      globals: globals.browser,
+      parserOptions: { ecmaFeatures: { jsx: true } },
+    },
+    rules: {
+      ...reactHooks.configs.recommended.rules,
+    },
+  },
+);