feat: initialize ingest-api with Koa and telemetry handling

- Create ingest-api with Koa framework for handling device telemetry.
- Implement telemetry ingestion with MongoDB, Redis, and PostgreSQL.
- Add API endpoints for telemetry and health checks.
- Set up testing with Vitest for unit and end-to-end tests.
- Configure Prettier and ESLint for code formatting and linting.
- Create Docker Compose setup for PostgreSQL, MongoDB, and Redis services.
- Establish contracts package for shared Zod schemas and TypeScript types.
- Implement React frontend with device status and greeting functionalities.
- Add VS Code setup documentation for onboarding developers.

apps/ingest-api/package.json

@@ -0,0 +1,40 @@
+{
+  "name": "ingest-api",
+  "version": "0.0.1",
+  "description": "Koa device ingest API",
+  "private": true,
+  "license": "UNLICENSED",
+  "type": "module",
+  "scripts": {
+    "build": "tsc -p tsconfig.build.json",
+    "start": "tsx src/main.ts",
+    "start:dev": "tsx watch src/main.ts",
+    "start:debug": "tsx watch --inspect=9230 src/main.ts",
+    "lint": "oxlint src/ test/",
+    "test": "vitest run",
+    "test:e2e": "vitest run --config ./vitest.config.e2e.ts"
+  },
+  "dependencies": {
+    "@koa/cors": "^5.0.0",
+    "@koa/router": "^12",
+    "contracts": "workspace:*",
+    "ioredis": "^5",
+    "koa": "^2",
+    "koa-body": "^6",
+    "mongodb": "^6",
+    "pg": "^8"
+  },
+  "devDependencies": {
+    "@types/koa": "^2",
+    "@types/koa__cors": "^5.0.1",
+    "@types/koa__router": "^12",
+    "@types/node": "^24.0.0",
+    "@types/pg": "^8",
+    "@types/supertest": "^7.0.0",
+    "oxlint": "^1.58.0",
+    "supertest": "^7.0.0",
+    "tsx": "^4",
+    "typescript": "^6.0.2",
+    "vitest": "^4.1.2"
+  }
+}