fix: PHP versions fallback and auto-migrate on panel start

internal/database/path.go

@@ -0,0 +1,17 @@
+package database
+
+import (
+	"os"
+	"path/filepath"
+)
+
+func MigrationsPath() (string, error) {
+	if p := os.Getenv("MIGRATIONS_PATH"); p != "" {
+		return p, nil
+	}
+	wd, err := os.Getwd()
+	if err != nil {
+		return "", err
+	}
+	return filepath.Join(wd, "migrations"), nil
+}