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/astro/dist/cli/create-key/core/create-key.d.ts

@@ -0,0 +1,17 @@
+import type { Logger } from '../../../core/logger/core.js';
+import type { KeyGenerator } from '../definitions.js';
+interface Options {
+    logger: Logger;
+    keyGenerator: KeyGenerator;
+}
+export declare const createKeyCommand: {
+    help: {
+        commandName: string;
+        tables: {
+            Flags: [string, string][];
+        };
+        description: string;
+    };
+    run({ logger, keyGenerator }: Options): Promise<void>;
+};
+export {};

node_modules/astro/dist/cli/create-key/core/create-key.js

@@ -0,0 +1,22 @@
+import { defineCommand } from "../../domain/command.js";
+const createKeyCommand = defineCommand({
+  help: {
+    commandName: "astro create-key",
+    tables: {
+      Flags: [["--help (-h)", "See all available flags."]]
+    },
+    description: "Generates a key to encrypt props passed to server islands."
+  },
+  async run({ logger, keyGenerator }) {
+    const key = await keyGenerator.generate();
+    logger.info(
+      "crypto",
+      `Generated a key to encrypt props passed to server islands. To reuse the same key across builds, set this value as ASTRO_KEY in an environment variable on your build server.
+
+ASTRO_KEY=${key}`
+    );
+  }
+});
+export {
+  createKeyCommand
+};

node_modules/astro/dist/cli/create-key/definitions.d.ts

@@ -0,0 +1,3 @@
+export interface KeyGenerator {
+    generate: () => Promise<string>;
+}

node_modules/astro/dist/cli/create-key/infra/crypto-key-generator.d.ts

@@ -0,0 +1,4 @@
+import type { KeyGenerator } from '../definitions.js';
+export declare class CryptoKeyGenerator implements KeyGenerator {
+    generate(): Promise<string>;
+}

node_modules/astro/dist/cli/create-key/infra/crypto-key-generator.js

@@ -0,0 +1,11 @@
+import { createKey, encodeKey } from "../../../core/encryption.js";
+class CryptoKeyGenerator {
+  async generate() {
+    const key = await createKey();
+    const encoded = await encodeKey(key);
+    return encoded;
+  }
+}
+export {
+  CryptoKeyGenerator
+};