feat: build interactive documentary page with audio player and chapter navigation

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/web/package.json

@@ -11,6 +11,7 @@
   "dependencies": {
     "@afterlife/shared": "*",
     "framer-motion": "^12.34.3",
+    "howler": "^2.2.4",
     "next": "^15",
     "next-intl": "^4.8.3",
     "react": "^19",
@@ -18,6 +19,7 @@
   },
   "devDependencies": {
     "@tailwindcss/postcss": "^4",
+    "@types/howler": "^2.2.12",
     "@types/node": "^20",
     "@types/react": "^19",
     "@types/react-dom": "^19",