update .gitignore to include additional patterns for node modules, build outputs, logs, and IDE settings

.gitignore

@@ -1,5 +1,38 @@
 index.html
 # Ignore frontend dev file
 
+# Ignore node modules (if using Node.js)
+client/node_modules/
+login-auth_backend/node_modules/
+panel-mgmt_backend/node_modules/
+user-mgmt_backend/node_modules/
+
+# Ignore build output directories
+dist/
+build/
+
+# Ignore log files
+*.log
+
+# Ignore OS-specific files
+.DS_Store
+Thumbs.db
+
+# Ignore notes and documentation
 todo.txt
-# Ignore todo list file
+docs/
+notes/
+
+# Ignore IDE/editor settings
+.vscode/
+.idea/
+
+# Ignore frontend dev files (uncompiled sources, temp files)
+*.tmp
+*.bak
+
+# Ignore compiled files (if any)
+*.out
+*.exe
+
+# Add more patterns as needed for your stack