feat: admin user creation, Vite migration, dialog fix, pl24 integration

- Add POST /admin/users endpoint with password hashing and role support
- Add user creation dialog to admin users page
- Migrate web from Next.js to Vite + TanStack Router
- Fix Dialog component positioning for Tailwind CSS v4
- Add @source directive for @sase/ui package scanning
- Add pl24 integration parsers and vehicle decode flow
- Backup old Next.js app to apps/web-nj

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

docker/nginx/sites/v2.sase.tr.conf

@@ -24,16 +24,32 @@ server {
     gzip_comp_level 6;
     gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript image/svg+xml;
 
-    location / {
-        proxy_pass http://127.0.0.1:3000;
+    root /home/s/ss/apps/web/dist;
+    index index.html;
+
+    # Proxy API requests to NestJS backend
+    location /api/ {
+        proxy_pass http://127.0.0.1:4000;
         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_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header X-Forwarded-Proto $scheme;
-        proxy_cache_bypass $http_upgrade;
+        proxy_connect_timeout 60s;
+        proxy_send_timeout 60s;
+        proxy_read_timeout 60s;
+    }
+
+    # Static assets with long cache
+    location /assets/ {
+        expires 1y;
+        add_header Cache-Control "public, immutable" always;
+        try_files $uri =404;
+    }
+
+    # SPA fallback — all routes resolve to index.html
+    location / {
+        try_files $uri $uri/ /index.html;
     }
 
     listen 443 ssl; # managed by Certbot