refac: rethought the complete workflow and deployement flow ; docs etc.

api/dependecyInjection.go

@@ -86,8 +86,18 @@ func getUseCases(repos *Repositories) *UseCases {
 	}
 }
 
-func InitContainer() *UseCases {
+func InitContainer() (*UseCases, func() error) {
 	db := getDb()
 	repos := getRepositories(db)
-	return getUseCases(repos)
+	return getUseCases(repos), closeDb(db)
+}
+
+func closeDb(db *gorm.DB) func() error {
+	return func() error {
+		sqlDb, err := db.DB()
+		if err != nil {
+			return err
+		}
+		return sqlDb.Close()
+	}
 }