Alpha Version of Syncing and Desktop/Anroid PWA

frontend/nginx.conf

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+server {
+    listen 80;
+    server_name _;
+    root /usr/share/nginx/html;
+    index index.html;
+
+    # Allow large drawing data + body size
+    client_max_body_size 50m;
+
+    # PWA service worker — MUST not be cached by browser/proxy
+    location = /sw.js {
+        add_header Cache-Control "no-cache, no-store, must-revalidate";
+        add_header Pragma "no-cache";
+        add_header Service-Worker-Allowed "/";
+        add_header Content-Type "application/javascript";
+        try_files $uri =404;
+    }
+
+    # PWA manifest
+    location = /manifest.json {
+        add_header Cache-Control "public, max-age=3600";
+        add_header Content-Type "application/manifest+json";
+        try_files $uri =404;
+    }
+
+    # Static assets — long cache with content hash from Vite
+    location /assets/ {
+        add_header Cache-Control "public, max-age=31536000, immutable";
+        try_files $uri =404;
+    }
+
+    # Icons
+    location ~* ^/icon-.*\.png$ {
+        add_header Cache-Control "public, max-age=86400";
+        try_files $uri =404;
+    }
+
+    # SPA fallback — all other routes serve index.html
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+
+    # API proxy
+    location /api/ {
+        proxy_pass http://inknote-server:4000;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_connect_timeout 10;
+        proxy_send_timeout 60;
+        proxy_read_timeout 60;
+    }
+
+    # WebSocket proxy
+    location /ws {
+        proxy_pass http://inknote-server:4000;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "upgrade";
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_read_timeout 86400;
+    }
+}