Publish party-position estimates and validation materials

PUBLICATION_POLICY.md

@@ -0,0 +1,23 @@
+# Public repository policy
+
+This repository is a public release surface. Every reachable commit, branch,
+tag, file, attachment, issue, pull request, and release note must be safe for
+unrestricted public access.
+
+Allowed material is limited to publication-ready software, data, metadata,
+documentation, figures, reproducibility outputs, and release records.
+
+Do not place private correspondence, assessment records, decision logs,
+working notes, draft response material, credentials, local paths, or other
+non-public project context in this repository.
+
+Before every push, run `bash scripts/check_public_content.sh`. Install the
+pre-push guard in every clone with `bash scripts/install_public_guard.sh`.
+
+If non-public material enters a public ref, stop publication work immediately.
+A later deletion does not make the prior object private. Replace the affected
+public history or repository with a clean snapshot, then verify that the old
+object URLs no longer resolve before publishing again.
+
+Branch names, tags, commit messages, release titles, release notes, issue
+titles, and pull-request titles follow the same rule as file contents.