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/v4/mini/external.js

@@ -0,0 +1,13 @@
+export * as core from "../core/index.js";
+export * from "./parse.js";
+export * from "./schemas.js";
+export * from "./checks.js";
+export { globalRegistry, registry, config, $output, $input, $brand, function, clone, regexes, treeifyError, prettifyError, formatError, flattenError, toJSONSchema, TimePrecision, NEVER, } from "../core/index.js";
+export * as locales from "../locales/index.js";
+/** A special constant with type `never` */
+// export const NEVER = {} as never;
+// iso
+export * as iso from "./iso.js";
+export { ZodMiniISODateTime, ZodMiniISODate, ZodMiniISOTime, ZodMiniISODuration, } from "./iso.js";
+// coerce
+export * as coerce from "./coerce.js";