Rename frontmatter field fingerprint to campaign (#3737)

Author: Copilot

.github/workflows/archie.lock.yml

@@ -8,7 +8,7 @@ permissions:
   actions: read
   issues: read
   pull-requests: read
-fingerprint: audit-workflows-daily
+campaign: audit-workflows-daily
 engine: claude
 tools:
   cache-memory: true

.github/workflows/artifacts-summary.lock.yml

@@ -7,7 +7,7 @@ permissions:
   contents: read
   issues: read
   pull-requests: read
-fingerprint: blog-auditor-weekly
+campaign: blog-auditor-weekly
 engine: claude
 network:
   allowed:

.github/workflows/audit-workflows.lock.yml

@@ -15,7 +15,7 @@ permissions:
   issues: read
   pull-requests: read
   actions: read
-fingerprint: ci-doctor-failures
+campaign: ci-doctor-failures
 safe-outputs:
   add-comment: null
   create-issue: