add guestbook

internal/guestbook/handler.go

@@ -0,0 +1,17 @@
+package guestbook
+
+import (
+	"database/sql"
+
+	gemini "github.com/kulak/gemini"
+)
+
+// Handler interface for microblog functionality
+type Handler interface {
+	HandleRequest(w gemini.ResponseWriter, req *gemini.Request)
+}
+
+// NewHandler creates a new microblog handler
+func NewHandler(db *sql.DB) Handler {
+	return NewGuestBook(db)
+}