Added gitignore templates

ignore/Firebase.gitignore

@@ -0,0 +1,28 @@
+# Firebase build and deployment files
+/firebase-debug.log
+/firebase-debug.*.log
+.firebaserc
+
+# Firebase Hosting
+/firebase.json
+*.cache
+hosting/.cache
+
+# Firebase Functions
+/functions/node_modules/
+/functions/.env
+/functions/package-lock.json
+
+# Firebase Emulators
+/firebase-*.zip
+/.firebase/
+/emulator-ui/
+
+# Logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Environment files (local configs)
+/.env.*