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/core/index.d.ts

@@ -0,0 +1,15 @@
+export * from "./core.js";
+export * from "./parse.js";
+export * from "./errors.js";
+export * from "./schemas.js";
+export * from "./checks.js";
+export * from "./versions.js";
+export * as util from "./util.js";
+export * as regexes from "./regexes.js";
+export * as locales from "../locales/index.js";
+export * from "./registries.js";
+export * from "./doc.js";
+export * from "./function.js";
+export * from "./api.js";
+export * from "./to-json-schema.js";
+export * as JSONSchema from "./json-schema.js";