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/astro/dist/events/error.d.ts

@@ -0,0 +1,30 @@
+import type { ZodError } from 'zod';
+import { type ErrorWithMetadata } from '../core/errors/index.js';
+interface ErrorEventPayload {
+    name: string;
+    isFatal: boolean;
+    plugin?: string | undefined;
+    cliCommand: string;
+    anonymousMessageHint?: string | undefined;
+}
+interface ConfigErrorEventPayload extends ErrorEventPayload {
+    isConfig: true;
+    configErrorPaths: string[];
+}
+export declare function eventConfigError({ err, cmd, isFatal, }: {
+    err: ZodError;
+    cmd: string;
+    isFatal: boolean;
+}): {
+    eventName: string;
+    payload: ConfigErrorEventPayload;
+}[];
+export declare function eventError({ cmd, err, isFatal, }: {
+    err: ErrorWithMetadata;
+    cmd: string;
+    isFatal: boolean;
+}): {
+    eventName: string;
+    payload: ErrorEventPayload;
+}[];
+export {};