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/tuple.js

@@ -0,0 +1,32 @@
+import { parseDef } from "../parseDef.js";
+export function parseTupleDef(def, refs) {
+    if (def.rest) {
+        return {
+            type: "array",
+            minItems: def.items.length,
+            items: def.items
+                .map((x, i) => parseDef(x._def, {
+                ...refs,
+                currentPath: [...refs.currentPath, "items", `${i}`],
+            }))
+                .reduce((acc, x) => (x === undefined ? acc : [...acc, x]), []),
+            additionalItems: parseDef(def.rest._def, {
+                ...refs,
+                currentPath: [...refs.currentPath, "additionalItems"],
+            }),
+        };
+    }
+    else {
+        return {
+            type: "array",
+            minItems: def.items.length,
+            maxItems: def.items.length,
+            items: def.items
+                .map((x, i) => parseDef(x._def, {
+                ...refs,
+                currentPath: [...refs.currentPath, "items", `${i}`],
+            }))
+                .reduce((acc, x) => (x === undefined ? acc : [...acc, x]), []),
+        };
+    }
+}