Initial service implementation

package.json

@@ -0,0 +1,24 @@
+{
+  "name": "loc-via-git",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "build": "tsc -p tsconfig.json",
+    "dev": "tsx watch src/server.ts",
+    "smoke": "bash tests/smoke.sh",
+    "start": "node dist/server.js",
+    "test": "npm run build && node --test 'tests/**/*.test.js'"
+  },
+  "dependencies": {
+    "express": "^4.21.2",
+    "express-rate-limit": "^7.4.1"
+  },
+  "devDependencies": {
+    "@types/express": "^5.0.3",
+    "@types/node": "^24.0.15",
+    "supertest": "^7.1.1",
+    "tsx": "^4.20.3",
+    "typescript": "^5.9.2"
+  }
+}