Initial commit — DRB server stack

Includes c2-core (FastAPI/MQTT/Firestore), discord-bot (slash commands),
frontend (Next.js admin UI), and mosquitto config.

drb-frontend/tailwind.config.ts

@@ -0,0 +1,18 @@
+import type { Config } from "tailwindcss";
+
+const config: Config = {
+  content: [
+    "./app/**/*.{ts,tsx}",
+    "./components/**/*.{ts,tsx}",
+  ],
+  theme: {
+    extend: {
+      fontFamily: {
+        mono: ["ui-monospace", "Cascadia Code", "Source Code Pro", "monospace"],
+      },
+    },
+  },
+  plugins: [],
+};
+
+export default config;