fix(web,api): UI fiche livre et lecteur — progression, locators EPUB/PDF, styles

- web: BookPage/ReaderPage enrichis, sauvegarde de progression lecteur
- web: locators EPUB/PDF normalisés (+ tests), EpubReader/PdfReader ajustés
- web: nginx et service worker ajustés
- api: progress — corrections contrôleur/service

Refs: #13

apps/web/nginx/default.conf

@@ -4,26 +4,41 @@ server {
   root /usr/share/nginx/html;
   index index.html;
 
-  location /auth/ {
-    proxy_pass http://api:3000/auth/;
+  location = /sw.js {
+    add_header Cache-Control "no-cache, no-store, must-revalidate";
+    try_files /sw.js =404;
+  }
+
+  location = /index.html {
+    add_header Cache-Control "no-cache, no-store, must-revalidate";
+    try_files /index.html =404;
+  }
+
+  location /assets/ {
+    add_header Cache-Control "public, max-age=31536000, immutable";
+    try_files $uri =404;
+  }
+
+  location ^~ /auth {
+    proxy_pass http://api:3000;
     proxy_set_header Host $host;
     proxy_set_header X-Real-IP $remote_addr;
   }
 
-  location /admin/ {
-    proxy_pass http://api:3000/admin/;
+  location ^~ /admin {
+    proxy_pass http://api:3000;
     proxy_set_header Host $host;
     proxy_set_header X-Real-IP $remote_addr;
   }
 
-  location /books/ {
-    proxy_pass http://api:3000/books/;
+  location ^~ /books {
+    proxy_pass http://api:3000;
     proxy_set_header Host $host;
     proxy_set_header X-Real-IP $remote_addr;
   }
 
-  location /progress/ {
-    proxy_pass http://api:3000/progress/;
+  location ^~ /progress {
+    proxy_pass http://api:3000;
     proxy_set_header Host $host;
     proxy_set_header X-Real-IP $remote_addr;
   }