refactor: Move Astro to root, use PORT env (default 80), allow all hosts

- Move Astro files from dealplustech-astro/ to project root
- Update Dockerfile: PORT environment variable (default 80)
- Add vite.config.ts with allowedHosts: true
- Matches nixpacks behavior for Easypanel deployment
- No hardcoded ports or domains

node_modules/oniguruma-to-es/dist/cjs/unicode.d.ts

@@ -0,0 +1,6 @@
+export const asciiSpaceChar: "[\t-\r ]";
+export const defaultWordChar: string;
+export function getIgnoreCaseMatchChars(char: any): any[];
+export const JsUnicodePropertyMap: Map<any, string>;
+export const PosixClassMap: Map<string, string>;
+export const UnicodePropertiesWithSpecificCase: Set<string>;