ci: adopt standards reusable workflows for Scorecard, Hypatia, and Governance

Author: hyperpolymath

.github/workflows/governance.yml

@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: PMPL-1.0-or-later
+name: Governance
+
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  governance:
+    uses: hyperpolymath/standards/.github/workflows/governance-reusable.yml@b89b2ef1e98928fce53a85e83c37f23a1d99f6d3

.github/workflows/hypatia-scan.yml

@@ -1,7 +1,4 @@
-# SPDX-License-Identifier: MPL-2.0
-# Thin wrapper around hyperpolymath/standards hypatia-scan-reusable.yml.
-# See standards#191 for the reusable's purpose and design.
-
+# SPDX-License-Identifier: PMPL-1.0-or-later
 name: Hypatia Security Scan
 
 on:
@@ -13,17 +10,10 @@ on:
     - cron: '0 0 * * 0'
   workflow_dispatch:
 
-# Estate guardrail: cancel superseded runs so re-pushes don't pile up.
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
 permissions:
   contents: read
-  security-events: write
-  pull-requests: write
+  security-events: read
 
 jobs:
-  hypatia:
-    uses: hyperpolymath/standards/.github/workflows/hypatia-scan-reusable.yml@915139d73560e65a8240b8fc7768698658502c89
-    secrets: inherit
+  scan:
+    uses: hyperpolymath/standards/.github/workflows/hypatia-scan-reusable.yml@b89b2ef1e98928fce53a85e83c37f23a1d99f6d3

.github/workflows/scorecard-enforcer.yml

@@ -1,16 +1,16 @@
-# SPDX-License-Identifier: MPL-2.0
-name: Scorecards supply-chain security
+# SPDX-License-Identifier: PMPL-1.0-or-later
+name: OSSF Scorecard
 
 on:
-  branch_protection_rule:
-  schedule:
-    - cron: '23 4 * * 1'
   push:
-    branches: [main]
+    branches: [main, master]
+  schedule:
+    - cron: '0 4 * * *'
+  workflow_dispatch:
 
-permissions: read-all
+permissions:
+  contents: read
 
 jobs:
-  analysis:
-    uses: hyperpolymath/standards/.github/workflows/scorecard-reusable.yml@e0caf11508a3989574713c78f5f444f2ce5e33ef
-    secrets: inherit
+  scorecard:
+    uses: hyperpolymath/standards/.github/workflows/scorecard-reusable.yml@b89b2ef1e98928fce53a85e83c37f23a1d99f6d3