chore: wrap errors to custom errors

backend/v3/storage/database/dialect/postgres/error.go

@@ -0,0 +1,33 @@
+package postgres
+
+import (
+	"errors"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgconn"
+	"github.com/zitadel/zitadel/backend/v3/storage/database"
+)
+
+func wrapError(err error) error {
+	if err == nil {
+		return nil
+	}
+	if errors.Is(err, pgx.ErrNoRows) {
+		return database.NewNoRowFoundError(err)
+	}
+	var pgxErr *pgconn.PgError
+	if !errors.As(err, &pgxErr) {
+		return database.NewUnknownError(err)
+	}
+	switch pgxErr.Code {
+	case "23514": // check_violation
+		return database.NewCheckError(pgxErr.TableName, pgxErr.ConstraintName, pgxErr)
+	case "23505": // unique_violation
+		return database.NewUniqueError(pgxErr.TableName, pgxErr.ConstraintName, pgxErr)
+	case "23503": // foreign_key_violation
+		return database.NewForeignKeyError(pgxErr.TableName, pgxErr.ConstraintName, pgxErr)
+	case "23502": // not_null_violation
+		return database.NewNotNullError(pgxErr.TableName, pgxErr.ConstraintName, pgxErr)
+	}
+	return database.NewUnknownError(err)
+}