fix: ESM import for next-pwa, changelog updates (F-5)

- Convert require() to ESM import in next.config.ts
- Remove skipWaiting (defaults to true in Workbox)

next.config.ts

@@ -1,10 +1,11 @@
 import type { NextConfig } from 'next'
-const withPWA = require("@ducanh2912/next-pwa").default({
+import withPWAInit from "@ducanh2912/next-pwa"
+
+const withPWA = withPWAInit({
   dest: "public",
   register: true,
-  skipWaiting: true,
   disable: process.env.NODE_ENV === "development",
-});
+})
 
 // * CSP directives — restrict resource loading to known origins
 const cspDirectives = [