Add Biome linting and improve webhook error handling

.github/workflows/ci.yml

@@ -0,0 +1,32 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 10.23.0
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: pnpm
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Lint
+        run: pnpm lint
+
+      - name: Build
+        run: pnpm build

biome.json

@@ -0,0 +1,13 @@
+{
+	"$schema": "https://biomejs.dev/schemas/biome.json",
+	"formatter": {
+		"enabled": true,
+		"indentWidth": 2
+	},
+	"linter": {
+		"enabled": true,
+		"rules": {
+			"recommended": true
+		}
+	}
+}

package.json

@@ -14,7 +14,10 @@
     "start": "tsx src/index.ts",
     "warelay": "tsx src/index.ts",
     "warely": "tsx src/index.ts",
-    "lint": "echo \"No linter configured\"",
+    "lint": "biome check src",
+    "lint:fix": "biome check --write src",
+    "format": "biome format src",
+    "format:fix": "biome format src --write",
     "test": "echo \"No tests yet\""
   },
   "keywords": [],
@@ -34,6 +37,7 @@
     "twilio": "^5.10.6"
   },
   "devDependencies": {
+    "@biomejs/biome": "^2.3.7",
     "@types/body-parser": "^1.19.6",
     "@types/express": "^5.0.5",
     "@types/node": "^24.10.1",