chore(lint): enforce 2-space indent & add gpg pre-commit hook

.husky/pre-commit

@@ -1 +1,11 @@
+# Check if GPG signing is enabled
+gpg_sign=$(git config --get commit.gpgsign || echo "false")
+
+if [ "$gpg_sign" != "true" ]; then
+  echo "Error: GPG signing is not enabled or properly configured!"
+  echo "Please enable it globally using: git config --global commit.gpgsign true"
+  echo "Or locally by running: git config commit.gpgsign true"
+  exit 1
+fi
+
 npm run lint

eslint.config.js

@@ -33,6 +33,7 @@ export default [
       'no-unused-vars': 'off',
       'no-undef': 'off',
       'no-debugger': 'off',
+      'indent': ['error', 2]
     }
   },
   {

src/style.css

@@ -212,6 +212,12 @@ body {
   box-sizing: border-box;
 }
 
+::placeholder {
+  color: var(--text-muted);
+  opacity: 1;
+  /* Override Firefox default opacity */
+}
+
 .tool-textarea {
   font-family: monospace;
   resize: none;