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/@shikijs/langs/dist/codeowners.mjs

@@ -0,0 +1,5 @@
+const lang = Object.freeze(JSON.parse("{\"displayName\":\"CODEOWNERS\",\"name\":\"codeowners\",\"patterns\":[{\"include\":\"#comment\"},{\"include\":\"#pattern\"},{\"include\":\"#owner\"}],\"repository\":{\"comment\":{\"patterns\":[{\"begin\":\"^\\\\s*#\",\"captures\":{\"0\":{\"name\":\"punctuation.definition.comment.codeowners\"}},\"end\":\"$\",\"name\":\"comment.line.codeowners\"}]},\"owner\":{\"match\":\"\\\\S*@\\\\S+\",\"name\":\"storage.type.function.codeowners\"},\"pattern\":{\"match\":\"^\\\\s*(\\\\S+)\",\"name\":\"variable.other.codeowners\"}},\"scopeName\":\"text.codeowners\"}"))
+
+export default [
+lang
+]