chore: update dependencies and gitignore

- Update ruff to 0.15.2 in requirements.txt
- Add pre-commit to requirements.txt
- Update uv.lock with new dependencies
- Add config/plugins/ to gitignore, remove src/window/launcher

.gitignore

@@ -11,5 +11,4 @@ src/styles/colors.css
 .aider*
 .venv/*
 .venv/
-src/window/launcher
-
+config/plugins/