Harden gitleaks and lint/format gates

.github/workflows/gitleaks.yml

@@ -3,25 +3,22 @@ name: gitleaks
 on:
   pull_request:
   push:
-    branches:
-      - main
   workflow_dispatch:
 
 permissions:
   contents: read
   pull-requests: read
 
 jobs:
-  scan:
-    name: scan
+  gitleaks:
+    name: gitleaks
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # actions/checkout@v4
         with:
           fetch-depth: 0
-
       - name: Run Gitleaks
-        uses: gitleaks/gitleaks-action@v2
+        uses: gitleaks/gitleaks-action@ff98106e4c7b2bc287b24eaf42907196329070c7 # gitleaks/gitleaks-action@v2
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.pre-commit-config.yaml

@@ -0,0 +1,6 @@
+# Optional local pre-commit hooks. CI is the enforced gate.
+repos:
+  - repo: https://github.com/gitleaks/gitleaks
+    rev: v8.30.1
+    hooks:
+      - id: gitleaks