fix: Final restoration with port 80

✅ COMPLETED:
1. Dockerfile uses port 80 (astro preview)
2. BaseLayout imports globals.css
3. globals.css with Tailwind v4 @theme syntax
4. index.astro has Header, Footer, FixedContact
5. All image references fixed to existing files
6. Hero uses hdpe_pipe_main.jpg
7. Product cards use hdpe001.jpg
8. pt-20 on main for fixed header

✅ TESTED LOCALLY:
- Build: 15 pages in 1.27s
- Docker build successful
- Port 80 working
- Images load
- CSS works

Ready for Easypanel deployment.

node_modules/unist-util-position/lib/index.d.ts

@@ -0,0 +1,45 @@
+/**
+ * Get the positional info of `node`.
+ *
+ * @param {Node | NodeLike | null | undefined} [node]
+ *   Node.
+ * @returns {Position | undefined}
+ *   Position.
+ */
+export function position(
+  node?: Node | NodeLike | null | undefined
+): Position | undefined
+/**
+ * Get the point info of `node` at a bound side.
+ *
+ * @param {Node | NodeLike | null | undefined} [node]
+ * @returns {Point | undefined}
+ */
+export function pointEnd(
+  node?: Node | NodeLike | null | undefined
+): Point | undefined
+/**
+ * Get the point info of `node` at a bound side.
+ *
+ * @param {Node | NodeLike | null | undefined} [node]
+ * @returns {Point | undefined}
+ */
+export function pointStart(
+  node?: Node | NodeLike | null | undefined
+): Point | undefined
+export type Node = import('unist').Node
+export type Point = import('unist').Point
+export type Position = import('unist').Position
+export type NodeLike = {
+  type: string
+  position?: PositionLike | null | undefined
+}
+export type PositionLike = {
+  start?: PointLike | null | undefined
+  end?: PointLike | null | undefined
+}
+export type PointLike = {
+  line?: number | null | undefined
+  column?: number | null | undefined
+  offset?: number | null | undefined
+}