feat: add optional service-url input for testing against non-production service

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: reuvenharrison

pr-comment/action.yml

@@ -26,6 +26,10 @@ inputs:
     description: 'GitHub token for posting PR comment'
     required: false
     default: '${{ github.token }}'
+  service-url:
+    description: 'oasdiff service base URL (override for testing)'
+    required: false
+    default: 'https://api.oasdiff.com'
 runs:
   using: 'docker'
   image: 'Dockerfile'
@@ -37,3 +41,4 @@ runs:
     - ${{ inputs.composed }}
     - ${{ inputs.oasdiff-token }}
     - ${{ inputs.github-token }}
+    - ${{ inputs.service-url }}

pr-comment/entrypoint.sh

@@ -13,6 +13,7 @@ readonly exclude_elements="$4"
 readonly composed="$5"
 readonly oasdiff_token="$6"
 readonly github_token="$7"
+readonly service_url="${8:-https://api.oasdiff.com}"
 
 echo "running oasdiff pr-comment base: $base, revision: $revision, include_path_params: $include_path_params, exclude_elements: $exclude_elements, composed: $composed"
 
@@ -75,7 +76,7 @@ payload=$(jq -n \
 
 # POST to oasdiff-service
 response=$(curl -s -w "\n%{http_code}" -X POST \
-    "https://api.oasdiff.com/tenants/${oasdiff_token}/pr-comment" \
+    "${service_url}/tenants/${oasdiff_token}/pr-comment" \
     -H "Content-Type: application/json" \
     -d "$payload")