Generates a host-owned Accrue webhook handler scaffold.
Generated files are stamped with # accrue:generated by
Accrue.Install.Fingerprints.
Flags
--module MyApp.BillingHandler--path lib/my_app/billing_handler.ex--dry-run--yes--non-interactive--force--manual
For Phoenix-generator familiarity, a single positional module argument is also accepted:
mix accrue.gen.handler MyApp.BillingHandler