Add netlify config

netlify.toml

+[build]
+  command = "bun run build"
+  publish = "dist"
+
+# Handle React Router
+[[redirects]]
+  from = "/*"
+  to = "/index.html"
+  status = 200
+
+# Security headers
+[[headers]]
+  for = "/*"
+  [headers.values]
+    X-Frame-Options = "DENY"
+    X-XSS-Protection = "1; mode=block"
+    X-Content-Type-Options = "nosniff"
+    Referrer-Policy = "strict-origin-when-cross-origin"
+    Content-Security-Policy = "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob: https:; connect-src 'self' https:;"
+
+# Cache control for static assets
+[[headers]]
+  for = "/assets/*"
+  [headers.values]
+    Cache-Control = "public, max-age=31536000, immutable"
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public/_redirects

+/*    /index.html   200
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