chore(ci): add commitlint config rules

Author: nanotaboada

commitlint.config.mjs

@@ -0,0 +1,16 @@
+// .commitlint.config.mjs
+import conventional from '@commitlint/config-conventional';
+
+export default {
+    ...conventional,
+    rules: {
+        'header-max-length': [2, 'always', 80],
+        'body-max-line-length': [2, 'always', 80],
+    },
+    ignores: [
+        // skip any commit whose body contains the Dependabot signature
+        (message) => message.includes('Signed‑off‑by: dependabot[bot]'),
+        // skip any Dependabot‑style bump header
+        (message) => /^chore\(deps(-dev)?\): bump /.test(message),
+    ],
+};