feat: ATM10-Statistikportal

Statistikportal für den All-the-Mods-10-Server (Minecraft 1.21.1, NeoForge 21.1):

- mod/: serverseitige NeoForge-Mod atmstats – Ereignisse, Live-Zähler, Servergesundheit,
  FTB-Dateien; Outbox auf der Festplatte, signierter gzip-Versand per HTTPS mit Backoff
- backend/: Fastify + PostgreSQL – idempotenter Ingest, Projektionen, Parser für SNBT,
  FTB Quests/Teams, world/stats, world/advancements und latest.log; Ranglisten, Snapshots,
  Retention, öffentliche API, SSE-Live-Updates, Admin mit argon2/CSRF, SFTP-Worker
- web/: Next.js-Dashboard – Übersicht, Ranglisten, Spielerprofile, ATM10, Server,
  Datenquellen, Verwaltung
- shared/: Protokoll v1 und API-Typen; tools/: Simulator, Log-Anonymisierer, RCON-Client
- deploy/: Docker Compose hinter Traefik, Backup; docs/: Architektur, Datenquellen, Betrieb

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

backend/package.json

@@ -0,0 +1,35 @@
+{
+  "name": "@atm/backend",
+  "version": "1.0.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "dev": "tsx watch src/server.ts",
+    "dev:worker": "tsx watch src/worker.ts",
+    "cli": "tsx src/cli.ts",
+    "build": "tsup",
+    "test": "vitest run",
+    "typecheck": "tsc -p tsconfig.json"
+  },
+  "devDependencies": {
+    "@types/node": "^20.19.43",
+    "@types/pg": "^8.23.1",
+    "@types/ssh2-sftp-client": "^9.0.6",
+    "tsup": "^8.5.1",
+    "tsx": "^4.23.15",
+    "typescript": "^5.9.3",
+    "vitest": "^3.2.7"
+  },
+  "dependencies": {
+    "@atm/shared": "*",
+    "@fastify/cookie": "^11.1.3",
+    "@fastify/helmet": "^13.1.2",
+    "@fastify/rate-limit": "^10.3.0",
+    "argon2": "^0.44.0",
+    "fastify": "^5.12.5",
+    "pg": "^8.23.1",
+    "pino": "^9.14.0",
+    "ssh2-sftp-client": "^12.1.1",
+    "zod": "^3.25.76"
+  }
+}