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/throw-and-exit.js

@@ -0,0 +1,25 @@
+import { collectErrorMetadata } from "../core/errors/dev/index.js";
+import { isAstroConfigZodError } from "../core/errors/errors.js";
+import { createSafeError } from "../core/errors/index.js";
+import { debug } from "../core/logger/core.js";
+import { formatErrorMessage } from "../core/messages.js";
+import { eventError, telemetry } from "../events/index.js";
+async function throwAndExit(cmd, err) {
+  if (isAstroConfigZodError(err)) {
+    process.exit(1);
+  }
+  let telemetryPromise;
+  let errorMessage;
+  function exitWithErrorMessage() {
+    console.error(errorMessage);
+    process.exit(1);
+  }
+  const errorWithMetadata = collectErrorMetadata(createSafeError(err));
+  telemetryPromise = telemetry.record(eventError({ cmd, err: errorWithMetadata, isFatal: true }));
+  errorMessage = formatErrorMessage(errorWithMetadata, true);
+  setTimeout(exitWithErrorMessage, 400);
+  await telemetryPromise.catch((err2) => debug("telemetry", `record() error: ${err2.message}`)).then(exitWithErrorMessage);
+}
+export {
+  throwAndExit
+};