feat(git): Use gitleaks in pre-commit git hook

common/.config/templates/pre-commit

@@ -0,0 +1,25 @@
+#!/bin/sh
+#
+# An example hook script to verify what is about to be committed.
+# Called by "git commit" with no arguments.  The hook should
+# exit with non-zero status after issuing an appropriate message if
+# it wants to stop the commit.
+#
+# To enable this hook, rename this file to "pre-commit".
+
+# Check if Gitleaks is installed
+if ! command -v gitleaks > /dev/null 2>&1; then
+    echo "Gitleaks is not installed. Skipping leak check."
+    echo "Please install Gitleaks for enhanced security."
+    exit 0
+fi
+
+# Run Gitleaks & check the exit code
+if ! gitleaks protect --staged -v; then
+    echo "Gitleaks has detected potential secrets in your changes."
+    echo "Please remove any sensitive information before committing."
+    exit 1
+fi
+
+# If Gitleaks passes, allow the commit
+exit 0