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/import-meta-resolve/lib/utils.js

@@ -0,0 +1,47 @@
+// Manually “tree shaken” from:
+// <https://github.com/nodejs/node/blob/81a9a97/lib/internal/modules/esm/utils.js>
+// Last checked on: Apr 29, 2024.
+
+import {codes} from './errors.js'
+
+const {ERR_INVALID_ARG_VALUE} = codes
+
+// In Node itself these values are populated from CLI arguments, before any
+// user code runs.
+// Here we just define the defaults.
+const DEFAULT_CONDITIONS = Object.freeze(['node', 'import'])
+const DEFAULT_CONDITIONS_SET = new Set(DEFAULT_CONDITIONS)
+
+/**
+ * Returns the default conditions for ES module loading.
+ */
+function getDefaultConditions() {
+  return DEFAULT_CONDITIONS
+}
+
+/**
+ * Returns the default conditions for ES module loading, as a Set.
+ */
+function getDefaultConditionsSet() {
+  return DEFAULT_CONDITIONS_SET
+}
+
+/**
+ * @param {Array<string>} [conditions]
+ * @returns {Set<string>}
+ */
+export function getConditionsSet(conditions) {
+  if (conditions !== undefined && conditions !== getDefaultConditions()) {
+    if (!Array.isArray(conditions)) {
+      throw new ERR_INVALID_ARG_VALUE(
+        'conditions',
+        conditions,
+        'expected an array'
+      )
+    }
+
+    return new Set(conditions)
+  }
+
+  return getDefaultConditionsSet()
+}