feat: publish standalone worker

Separate worker packaging and service lifecycle from the control plane.

app/models/init.go

@@ -0,0 +1,30 @@
+package models
+
+import (
+	"context"
+
+	"github.com/fatih/structs"
+	"gorm.io/gorm"
+)
+
+func init() {
+	structs.DefaultTagName = "json"
+}
+
+// db Gorm DB
+var db *gorm.DB
+
+// DB provides functionality.
+func DB() *gorm.DB {
+	return db.WithContext(context.TODO())
+}
+
+// SetDB provides functionality.
+func SetDB(newDb *gorm.DB) {
+	db = newDb
+}
+
+// IsDBAvailable returns true if the database has been initialized
+func IsDBAvailable() bool {
+	return db != nil
+}