feat(static-sites): add scoped Bunny purge gateway

action.yml

@@ -13,6 +13,10 @@ inputs:
     description: Regional Bunny Storage API hostname.
     required: false
     default: storage.bunnycdn.com
+  purge-endpoint:
+    description: Optional trusted static-site purge gateway base URL.
+    required: false
+    default: ""
   dry-run:
     description: Report changes without uploading or deleting files.
     required: false
@@ -27,6 +31,7 @@ runs:
         STATIC_SITE_DIRECTORY: ${{ inputs.directory }}
         BUNNY_STORAGE_ZONE: ${{ inputs.storage-zone }}
         BUNNY_STORAGE_ENDPOINT: ${{ inputs.storage-endpoint }}
+        BUNNY_PURGE_ENDPOINT: ${{ inputs.purge-endpoint }}
         STATIC_SITE_DRY_RUN: ${{ inputs.dry-run }}
       run: |
         set -euo pipefail