chore(ci): replace per-repo governance copies with shared bundle wrapper

Per verisimiser#59 / standards#81: the ~8 portable governance workflows
were duplicated per-repo (a drift engine). This deletes the local copies
and adds one governance.yml that calls
hyperpolymath/standards/.github/workflows/governance-reusable.yml@main.
Load-bearing build/security workflows are untouched. Idempotent.

Refs verisimiser#59

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: hyperpolymath

.github/workflows/governance.yml

@@ -0,0 +1,26 @@
+# SPDX-License-Identifier: PMPL-1.0-or-later
+# governance.yml — single wrapper calling the shared estate governance bundle
+# in hyperpolymath/standards instead of carrying per-repo copies.
+#
+# Replaces the per-repo governance scaffolding removed in the same commit:
+#   quality.yml, guix-nix-policy.yml, npm-bun-blocker.yml, ts-blocker.yml,
+#   security-policy.yml, rsr-antipattern.yml, wellknown-enforcement.yml,
+#   workflow-linter.yml
+#
+# Load-bearing build/security workflows stay standalone in the repo
+# (rust-ci, codeql, dependabot, release, scan/mirror/pages plumbing).
+
+name: Governance
+
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  governance:
+    uses: hyperpolymath/standards/.github/workflows/governance-reusable.yml@main