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/session.d.ts

@@ -0,0 +1,26 @@
+import type { AstroUserConfig } from '../types/public/config.js';
+interface EventPayload {
+    cliCommand: string;
+    config?: ConfigInfo;
+    configKeys?: string[];
+    flags?: string[];
+    optionalIntegrations?: number;
+}
+type ConfigInfoValue = string | boolean | string[] | undefined;
+type ConfigInfoRecord = Record<string, ConfigInfoValue>;
+type ConfigInfoBase = {
+    [alias in keyof AstroUserConfig]: ConfigInfoValue | ConfigInfoRecord;
+};
+interface ConfigInfo extends ConfigInfoBase {
+    build: ConfigInfoRecord;
+    image: ConfigInfoRecord;
+    markdown: ConfigInfoRecord;
+    experimental: ConfigInfoRecord;
+    legacy: ConfigInfoRecord;
+    vite: ConfigInfoRecord | undefined;
+}
+export declare function eventCliSession(cliCommand: string, userConfig: AstroUserConfig, flags?: Record<string, any>): {
+    eventName: string;
+    payload: EventPayload;
+}[];
+export {};