refactor: replace gorm with vanilla sql and sqlc

internal/bootstrap/db_bootstrap.go

@@ -0,0 +1,52 @@
+package bootstrap
+
+import (
+	"database/sql"
+	"fmt"
+	"os"
+	"path/filepath"
+	"tinyauth/internal/assets"
+
+	"github.com/golang-migrate/migrate/v4"
+	"github.com/golang-migrate/migrate/v4/database/sqlite3"
+	"github.com/golang-migrate/migrate/v4/source/iofs"
+	_ "modernc.org/sqlite"
+)
+
+func (app *BootstrapApp) setupDatabase(databasePath string) (*sql.DB, error) {
+	dir := filepath.Dir(databasePath)
+
+	if err := os.MkdirAll(dir, 0755); err != nil {
+		return nil, fmt.Errorf("failed to create database directory %s: %w", dir, err)
+	}
+
+	db, err := sql.Open("sqlite", databasePath)
+
+	if err != nil {
+		return nil, fmt.Errorf("failed to open database: %w", err)
+	}
+
+	migrations, err := iofs.New(assets.Migrations, "migrations")
+
+	if err != nil {
+		return nil, fmt.Errorf("failed to create migrations: %w", err)
+	}
+
+	target, err := sqlite3.WithInstance(db, &sqlite3.Config{})
+
+	if err != nil {
+		return nil, fmt.Errorf("failed to create sqlite3 instance: %w", err)
+	}
+
+	migrator, err := migrate.NewWithInstance("iofs", migrations, "sqlite3", target)
+
+	if err != nil {
+		return nil, fmt.Errorf("failed to create migrator: %w", err)
+	}
+
+	if err := migrator.Up(); err != nil && err != migrate.ErrNoChange {
+		return nil, fmt.Errorf("failed to migrate database: %w", err)
+	}
+
+	return db, nil
+}