Added gitignore file

.gitignore

@@ -0,0 +1,124 @@
+###############################
+# Visual Studio / .NET Ignore #
+###############################
+
+# User-specific files
+.vs/
+.vscode/
+*.user
+*.suo
+*.userosscache
+*.sln.docstates
+
+# Build results
+[Bb]in/
+[Oo]bj/
+**/[Bb]in/
+**/[Oo]bj/
+
+# Rider / JetBrains
+.idea/
+
+# Build output from publish or temp folders
+[Dd]ebug/
+[Rr]elease/
+x64/
+x86/
+[Aa][Rr][Mm]/
+[Aa][Rr][Mm]64/
+[Bb]uild/
+[Ll]og/
+[Ll]ogs/
+*.log
+
+# NuGet packages
+*.nupkg
+*.snupkg
+*.nuspec
+*.dll
+*.exe
+packages/
+**/packages/
+
+# Compiled sources
+*.dll
+*.exe
+*.pdb
+*.cache
+*.mdb
+
+# Publish files
+**/Properties/PublishProfiles/
+**/obj/Release/
+**/obj/Debug/
+**/obj/**/PubTmp/
+**/obj/**/Out/
+
+# Generated code
+*.generated.*
+*.g.*
+*.AssemblyInfo.cs
+
+# Others
+[Tt]est[Rr]esult*/
+[Tt]est[Rr]esults/
+*.dbmdl
+*.bak
+*.sql
+*.sqlite
+
+# Temporary and local settings
+*.tmp
+*.temp
+*.swp
+*.swo
+*.userprefs
+*.local
+*.env
+.env
+.env.*
+
+# OS generated files
+.DS_Store
+Thumbs.db
+ehthumbs.db
+desktop.ini
+
+# Dotnet Tools
+.dotnet-tools/
+
+# Secrets and config files
+appsettings.*.json
+secrets.json
+*.key
+*.pem
+*.pfx
+*.cer
+*.cache
+
+#########################
+# Project-specific rules #
+#########################
+
+# Database scripts (optional - uncomment if not needed in git)
+# /database/
+
+# Documents (optional)
+# /documents/
+
+# Ignore build artifacts for microservices
+**/microservices/**/[Bb]in/
+**/microservices/**/[Oo]bj/
+**/gateway/**/[Bb]in/
+**/gateway/**/[Oo]bj/
+
+#########################
+# End of .gitignore file #
+#########################
+*.assets.cache
+/microservices/admin/obj/Debug/net9.0/API.Admin.assets.cache
+/microservices/institute/obj/Debug/net9.0/API.Institute.assets.cache
+/microservices/S3Bucket/obj/Debug/net9.0/API.Bucket.assets.cache
+/microservices/student/obj/Debug/net9.0/API.Student.assets.cache
+/microservices/teacher/obj/Debug/net9.0/API.Teacher.assets.cache
+/microservices/user/obj/Debug/net9.0/API.User.assets.cache