SCRAPE-2: Add scraper config constants (#7)

.github/workflows/deploy.yml

@@ -4,7 +4,6 @@ on:
   push:
     branches: [ main ]
   pull_request:
-    branches: [ main ]
   workflow_dispatch:
 
 env:
@@ -128,7 +127,7 @@ jobs:
           # Build JSON payload
           PAYLOAD=$(jq -n \
             --arg repo "${{ github.repository }}" \
-            --arg branch "${{ github.ref_name }}" \
+            --arg branch "${{ github.head_ref || github.ref_name }}" \
             --arg commit "${{ github.sha }}" \
             --arg commit_short "$(echo '${{ github.sha }}' | cut -c1-7)" \
             --arg commit_message "${{ github.event.head_commit.message || github.event.pull_request.title || 'N/A' }}" \