Refactor and remove sqlite and replace with MySQL

internal/storage/mysql/seeds/thunderball_seed.go

@@ -0,0 +1,31 @@
+package storage
+
+import (
+	"database/sql"
+	"os"
+)
+
+// this is an example currenlty not true data
+func Seed(db *sql.DB) error {
+	if _, err := db.Exec(`
+		INSERT INTO settings (k, v)
+		SELECT 'site_name', 'SynLotto'
+		WHERE NOT EXISTS (SELECT 1 FROM settings WHERE k='site_name');
+	`); err != nil {
+		// settings table is optional; remove if you don't use it
+	}
+
+	// 2) admin user (idempotent + secret from env)
+	adminUser := "admin"
+	adminHash := os.Getenv("ADMIN_BCRYPT_HASH") // or build from ADMIN_PASSWORD
+	if adminHash == "" {
+		// skip silently if you don’t want to hard-require it
+		return nil
+	}
+	_, err := db.Exec(`
+		INSERT INTO users (username, password_hash, is_admin)
+		VALUES (?, ?, 1)
+		ON DUPLICATE KEY UPDATE is_admin=VALUES(is_admin)
+	`, adminUser, adminHash)
+	return err
+}