fix: Fix product page syntax errors

1. Remove duplicate/broken code in product tables section
2. Fix PostCSS config for Tailwind 4
3. Add @tailwindcss/postcss dependency
4. Remove --production flag from Dockerfile (sharp required)

All fixes enable successful Docker build with favicon working.

node_modules/zod-to-json-schema/dist/esm/parsers/catch.js

@@ -0,0 +1,4 @@
+import { parseDef } from "../parseDef.js";
+export const parseCatchDef = (def, refs) => {
+    return parseDef(def.innerType._def, refs);
+};