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/sync/index.js

@@ -0,0 +1,23 @@
+import { printHelp } from "../../core/messages.js";
+import _sync from "../../core/sync/index.js";
+import { flagsToAstroInlineConfig } from "../flags.js";
+async function sync({ flags }) {
+  if (flags?.help || flags?.h) {
+    printHelp({
+      commandName: "astro sync",
+      usage: "[...flags]",
+      tables: {
+        Flags: [
+          ["--force", "Clear the content layer cache, forcing a full rebuild."],
+          ["--help (-h)", "See all available flags."]
+        ]
+      },
+      description: `Generates TypeScript types for all Astro modules.`
+    });
+    return 0;
+  }
+  await _sync(flagsToAstroInlineConfig(flags), { telemetry: true });
+}
+export {
+  sync
+};