feat: initial project setup with Go module and dependencies

- Add Go module configuration with required dependencies
- Include GORM for database operations
- Add UUID and crypto libraries for certificate management
- Configure .gitignore to exclude sensitive data and build artifacts

.gitignore

@@ -0,0 +1,60 @@
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+
+# Go workspace file
+go.work
+
+# IDE files
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS generated files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Database files
+*.db
+*.sqlite
+*.sqlite3
+
+# Certificate and private key files
+data/certs/
+data/private/
+*.crt
+*.key
+*.pem
+*.p12
+*.pfx
+
+# Log files
+*.log
+
+# Environment files
+.env
+.env.local
+.env.production
+
+# Temporary files
+tmp/
+temp/