Add Oxlint configuration and integrate linting commands

- Introduced a new `.oxlintrc.json` file to configure Oxlint for code quality checks.
- Updated `package.json` to include linting scripts (`lint` and `lint:fix`) for easier code maintenance.
- Enhanced documentation in `README` files to guide users on running Oxlint checks and applying fixes.

package.json

@@ -14,6 +14,8 @@
   "scripts": {
     "dev": "bun run index.ts",
     "start": "bun run index.ts",
+    "lint": "oxlint",
+    "lint:fix": "oxlint --fix",
     "test": "bun x vitest run",
     "test:exchange-contract": "bun x vitest run tests/exchange-contract-suite.test.ts tests/exchange-factory.test.ts tests/config.test.ts",
     "test:watch": "bun x vitest",
@@ -27,6 +29,7 @@
   },
   "devDependencies": {
     "@types/bun": "^1.3.9",
+    "oxlint": "^1.54.0",
     "vitest": "^4.0.18"
   },
   "peerDependencies": {