Initiële commit: VibeFinance 3-container opzet

Basislijn van de bestaande applicatie (Vite/React frontend, Express
backend, PostgreSQL) zoals die in de index stond, plus dev-, release-
en documentatiescripts.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

backend/src/logger.js

@@ -0,0 +1,9 @@
+import pino from "pino";
+import { config } from "./config/index.js";
+
+export const logger = pino({
+  level: config.NODE_ENV === "production" ? "info" : "debug",
+  ...(config.NODE_ENV !== "production" && {
+    transport: { target: "pino-pretty", options: { colorize: true } },
+  }),
+});