Update .gitignore to include additional entries for build artifacts, Node.js dependencies, environment variables, IDE configurations, and OS-specific files, enhancing project cleanliness and preventing unnecessary files from being tracked.

.gitignore

@@ -1,3 +1,32 @@
 .git/*
 build/*
 logs/*.log
+
+# Build-Artefakte (werden auf dem Server neu gebaut)
+client/dist/
+dist/
+docroot/dist/
+
+# Node.js
+node_modules/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.npm
+.npmrc
+
+# Umgebungsvariablen
+.env
+.env.local
+.env.*.local
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db