chore(ci): replace per-repo governance copies with shared bundle wrapper (#59) (#81)

Estate governance-wrapper rollout (verisimiser#59 / standards#81).
ephapax requires signed commits + PR (ruleset), so unlike the 304
direct-push repos this lands as a PR.

Deletes the 7 per-repo governance workflow copies (guix-nix-policy,
npm-bun-blocker, rsr-antipattern, security-policy, ts-blocker,
wellknown-enforcement, workflow-linter) and adds one `governance.yml`
calling
`hyperpolymath/standards/.github/workflows/governance-reusable.yml@main`.
Load-bearing build/security workflows untouched.

Refs verisimiser#59

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Author: hyperpolymath

.github/workflows/governance.yml

@@ -0,0 +1,25 @@
+# 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 this PR:
+#   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.
+
+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