Creates a new security group with optional rules for a project
JWT token from authentication service
Account ID from authentication (must match path accountId)
User ID performing the action
Unique request ID for tracing
Account external ID
^acct-[a-zA-Z0-9]+-v1$Project external ID
^proj-[a-zA-Z0-9]+-v1$Project external ID
"proj-abc123xyz-v1"
Security group name
1 - 255"web-servers-sg"
Optional description
"Security group for web server instances"
Initial firewall rules
Optional metadata key-value pairs