fix(check-naming): enforce tracking attribution

Authored-By: Codex (GPT-5.6) <noreply@openai.com>

action.yaml

@@ -1,8 +1,8 @@
-name: Check branch/PR naming
+name: Check PR contract
 description: |
-  Validates that a PR's head branch and title follow the fritzlab naming
-  standard. Fails (exits 1) on any violation, with FAIL log lines naming
-  it. Warn-only wiring is the consumer's choice: set
+  Validates that a PR's branch, title, Bug tracking, and AI attribution
+  follow the fritzlab Git standard. Fails (exits 1) on any violation, with
+  FAIL log lines naming it. Warn-only wiring is the consumer's choice: set
   continue-on-error: true on the job (or pin @v1, which never fails).
 
   Standard:
@@ -26,6 +26,15 @@ inputs:
       dfritz is exempt from all checks.
     required: false
     default: ''
+  pr-body:
+    description: PR description — github.event.pull_request.body.
+    required: true
+  base-sha:
+    description: Base commit SHA — github.event.pull_request.base.sha.
+    required: true
+  head-sha:
+    description: Head commit SHA — github.event.pull_request.head.sha.
+    required: true
 
 runs:
   using: composite
@@ -36,4 +45,7 @@ runs:
         HEAD_BRANCH: ${{ inputs.head-branch }}
         PR_TITLE: ${{ inputs.pr-title }}
         PR_AUTHOR: ${{ inputs.pr-author }}
+        PR_BODY: ${{ inputs.pr-body }}
+        BASE_SHA: ${{ inputs.base-sha }}
+        HEAD_SHA: ${{ inputs.head-sha }}
       run: bash "${{ github.action_path }}/check.sh"