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

go.mod

@@ -0,0 +1,24 @@
+module git.secnex.io/secnex/certman
+
+go 1.25.1
+
+require (
+	github.com/google/uuid v1.6.0
+	golang.org/x/crypto v0.31.0
+	gorm.io/driver/postgres v1.6.0
+	gorm.io/driver/sqlite v1.6.0
+	gorm.io/gorm v1.31.0
+)
+
+require (
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
+	github.com/jackc/pgx/v5 v5.6.0 // indirect
+	github.com/jackc/puddle/v2 v2.2.2 // indirect
+	github.com/jinzhu/inflection v1.0.0 // indirect
+	github.com/jinzhu/now v1.1.5 // indirect
+	github.com/mattn/go-sqlite3 v1.14.22 // indirect
+	golang.org/x/sync v0.10.0 // indirect
+	golang.org/x/sys v0.28.0 // indirect
+	golang.org/x/text v0.21.0 // indirect
+)