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/cli/info/definitions.d.ts

@@ -0,0 +1,30 @@
+import type { AstroConfig } from '../../types/public/index.js';
+import type { DebugInfo } from './domain/debug-info.js';
+export interface DebugInfoProvider {
+    get: () => Promise<DebugInfo>;
+}
+export interface DebugInfoFormatter {
+    format: (info: DebugInfo) => string;
+}
+export interface Clipboard {
+    copy: (text: string) => Promise<void>;
+}
+export interface PackageManager {
+    readonly name: string;
+    getPackageVersion: (name: string) => Promise<string | undefined>;
+}
+export interface AstroConfigResolver {
+    resolve: () => Promise<AstroConfig>;
+}
+export interface Prompt {
+    confirm: (input: {
+        message: string;
+        defaultValue?: boolean;
+    }) => Promise<boolean>;
+}
+export interface PackageManagerUserAgentProvider {
+    readonly userAgent: string | null;
+}
+export interface NodeVersionProvider {
+    readonly version: string;
+}