Implement rough architecture

backend/database/models/journal.go

@@ -0,0 +1,14 @@
+package models
+
+import (
+	"gorm.io/datatypes"
+)
+
+type Journal struct {
+	Date           datatypes.Date `gorm:"primaryKey"`
+	Thankful       datatypes.JSON
+	LookingForward datatypes.JSON
+	BeenGreat      datatypes.JSON
+	DoBetter       datatypes.JSON
+	Journal        string
+}