chore: fix release script (git add -u), add target/ to gitignore

Author: GitLab CI

.gitignore

@@ -80,3 +80,10 @@ intellij-plugin/build/
 # Note: gradle/, gradlew, gradlew.bat are NOT ignored - needed for CI/CD
 .mcp.json
 node_modules
+
+# Rust build output
+target/
+
+# Generated files
+**/gen/
+**/icons/icon.png

scripts/release.sh

@@ -176,7 +176,8 @@ fi
 # Step 4: Show changes and confirm
 echo ""
 echo "📋 Changes to be committed:"
-git add -A
+git add -u  # Only stage modified tracked files (not untracked)
+git add .gitignore  # Include .gitignore changes
 git diff --cached --stat
 echo ""