Довёл fix20: firewall-mode, staged state, diagnostics, readiness и build-gate

apps/dao/sqlite.go

@@ -226,6 +226,20 @@ func CloseSqliteDB() error {
 	return nil
 }
 
+func IsSqliteReady() bool {
+  if sqliteDB == nil {
+    return false
+  }
+  db, err := sqliteDB.DB()
+  if err != nil {
+    return false
+  }
+  if err := db.Ping(); err != nil {
+    return false
+  }
+  return true
+}
+
 func Paginate(pageNum *int64, pageSize *int64) func(db *gorm.DB) *gorm.DB {
 	var num int64 = 1
 	var size int64 = 10