add sqlc and sqlite

backend/cmd/server/main.go

@@ -5,6 +5,7 @@ import (
 	"os"
 
 	"github.com/gin-gonic/gin"
+	"github.com/vaultdrop/backend/internal/db"
 	"github.com/vaultdrop/backend/internal/handlers"
 )
 
@@ -14,6 +15,14 @@ func main() {
 		port = "8080"
 	}
 
+	database, err := db.Connect()
+	if err != nil {
+		log.Fatalf("Failed to connect to database: %v", err)
+	}
+	defer database.Close()
+
+	_ = database // will be passed to handlers once queries are implemented
+
 	r := gin.Default()
 
 	r.GET("/api/v1/health", handlers.Health)