Update configuration and README for improved setup and security; disable default API and emoji sync, and enhance Discord permission checks in API routes.

Co-authored-by: Cursor <cursoragent@cursor.com>

dashboard/postcss.config.mjs

@@ -0,0 +1,8 @@
+/** @type {import('postcss-load-config').Config} */
+const config = {
+  plugins: {
+    tailwindcss: {},
+  },
+};
+
+export default config;