Allow Cusdis scripts via CSP

Author: agent-ptolemy

docs/_headers

@@ -7,7 +7,7 @@
   Permissions-Policy: camera=(), microphone=(), geolocation=(), payment=()
 
   # Content Security Policy
-  Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline' https://cloud.umami.is; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com; img-src 'self' data: https:; connect-src 'self' https://cloud.umami.is; frame-src 'none'; object-src 'none'; base-uri 'self'; form-action 'self'; upgrade-insecure-requests
+  Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline' https://cloud.umami.is https://cusdis.com https://js.cusdis.com; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com; img-src 'self' data: https:; connect-src 'self' https://cloud.umami.is https://cusdis.com https://js.cusdis.com; frame-src 'none'; object-src 'none'; base-uri 'self'; form-action 'self'; upgrade-insecure-requests
 
   # HSTS (HTTP Strict Transport Security)
   Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
@@ -23,7 +23,7 @@
   Cache-Control: public, max-age=86400, must-revalidate
 
   # Less restrictive CSP for assets
-  Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline' https://cloud.umami.is; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com; img-src 'self' data: https:; connect-src 'self' https://cloud.umami.is; frame-src 'none'; object-src 'none'; base-uri 'self'; form-action 'self'
+  Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline' https://cloud.umami.is https://cusdis.com https://js.cusdis.com; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com; img-src 'self' data: https:; connect-src 'self' https://cloud.umami.is https://cusdis.com https://js.cusdis.com; frame-src 'none'; object-src 'none'; base-uri 'self'; form-action 'self'
 
 # Cache CSS files for 24 hours (good balance)
 *.css