improve: better use of screen space on all pages

- Larger book spines on desktop (w-64 h-96)
- Wider spacing between books on shelf
- Game cover page: two-column layout on large screens
- Chapter reader: wider content area (800px on lg)
- Larger typography on desktop breakpoints

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

.claude/settings.local.json

@@ -0,0 +1,44 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(git init:*)",
+      "Bash(git add:*)",
+      "Bash(git commit:*)",
+      "Bash(git config:*)",
+      "Bash(npx create-next-app@latest:*)",
+      "Bash(npx create-next-app@14:*)",
+      "Bash(npm install:*)",
+      "Bash(timeout 30 npm run dev:*)",
+      "Bash(timeout 20 npm run dev:*)",
+      "Bash(git -C /home/PaginaNovelasYRpg add:*)",
+      "Bash(git -C /home/PaginaNovelasYRpg status)",
+      "Bash(git -C:*)",
+      "Bash(echo:*)",
+      "Bash(npx tsc:*)",
+      "Bash(pkill:*)",
+      "Bash(ls:*)",
+      "Bash(npm run build:*)",
+      "Bash(curl -s -X POST \"https://git.consultoria-as.com/api/v1/user/repos\"  -H \"Content-Type: application/json\"  -u \"consultoria-as:Aasi940812\"  -d '{\"\"name\"\":\"\"cronicas-de-los-reinos\"\",\"\"description\"\":\"\"Las historias epicas de los MMORPGs que marcaron una era\"\",\"\"private\"\":false}')",
+      "Bash(python3:*)",
+      "Bash(git remote add:*)",
+      "Bash(git branch:*)",
+      "Bash(git push:*)",
+      "Bash(git remote set-url:*)",
+      "Bash(ip addr:*)",
+      "Bash(pm2 start:*)",
+      "Bash(pm2 startup:*)",
+      "Bash(pm2 save:*)",
+      "Bash(curl:*)",
+      "Bash(pm2 stop:*)",
+      "Bash(pm2 logs:*)",
+      "Bash(pm2 delete:*)",
+      "Bash(lsof:*)",
+      "Bash(xargs:*)",
+      "Bash(pm2 kill:*)",
+      "Bash(ss:*)",
+      "Bash(kill:*)",
+      "Bash(NODE_ENV=production npx next build:*)",
+      "Bash(pm2 restart:*)"
+    ]
+  }
+}