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/micromark/dev/lib/preprocess.d.ts

@@ -0,0 +1,13 @@
+/**
+ * @returns {Preprocessor}
+ *   Preprocess a value.
+ */
+export function preprocess(): Preprocessor;
+/**
+ * Preprocess a value.
+ */
+export type Preprocessor = (value: Value, encoding?: Encoding | null | undefined, end?: boolean | null | undefined) => Array<Chunk>;
+import type { Value } from 'micromark-util-types';
+import type { Encoding } from 'micromark-util-types';
+import type { Chunk } from 'micromark-util-types';
+//# sourceMappingURL=preprocess.d.ts.map