Remove bin directory from repo

.gitignore

@@ -1,19 +1,6 @@
-backend/.db/
-backend/.env
-backend/todo
-backend/.creds
-backend/init/*
-backend/*temp.java
-backend/src/main/java/dev/ksan/etfoglasiserver/temp.java
-backend/bin/
-
-
-
-
-
-# Java / Gradle
-backend/.gradle/
-backend/build/
+########################
+# GLOBAL (all projects)
+########################
 
 # IDEs
 .idea/
@@ -22,7 +9,28 @@ backend/build/
 *.ipr
 *.iws
 
-# Eclipse / STS
+# OS
+.DS_Store
+
+# Logs
+*.log
+
+########################
+# BACKEND (Spring Boot)
+########################
+
+backend/.gradle/
+backend/build/
+backend/bin/
+
+backend/.env
+backend/.creds
+backend/.db/
+
+backend/init/*
+backend/**/*temp.java
+
+# Java / Eclipse / STS
 .classpath
 .project
 .settings/
@@ -35,54 +43,38 @@ nbbuild/
 nbdist/
 .nb-gradle/
 
-# Environment & secrets
-backend/.env
-backend/.creds
+########################
+# FRONTEND (React Native / Expo)
+########################
 
-# Local database
-backend/.db/
+frontend/node_modules/
 
-## frontend
+frontend/.expo/
+frontend/dist/
+frontend/web-build/
 
-# dependencies
-node_modules/
+frontend/.kotlin/
+frontend/*.orig.*
+frontend/*.jks
+frontend/*.p8
+frontend/*.p12
+frontend/*.key
+frontend/*.mobileprovision
+
+frontend/.metro-health-check*
+
+frontend/npm-debug.*
+frontend/yarn-debug.*
+frontend/yarn-error.*
+
+frontend/.env
+frontend/.env*.local
+
+frontend/*.tsbuildinfo
+
+# Native builds
+frontend/ios/
+frontend/android/
 
 # Expo
-.expo/
-dist/
-web-build/
-expo-env.d.ts
-
-# Native
-.kotlin/
-*.orig.*
-*.jks
-*.p8
-*.p12
-*.key
-*.mobileprovision
-
-# Metro
-.metro-health-check*
-
-# debug
-npm-debug.*
-yarn-debug.*
-yarn-error.*
-
-# macOS
-.DS_Store
-*.pem
-
-# local env files
-.env*.local
-frontend/.env
-
-# typescript
-*.tsbuildinfo
-
-app-example
-
-# generated native folders
-/ios
-/android
+frontend/expo-env.d.ts