Initial project setup: Clojure Kit web app for BTC price tracking

Kit framework with Undertow, Reitit routing, Hiccup + HTMX templating,
Tailwind CSS v4, PostgreSQL (empty database), and mobile-first index page.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

tailwind.config.js

@@ -0,0 +1,5 @@
+module.exports = {
+  content: ["./src/**/*.clj", "./resources/**/*.html"],
+  theme: { extend: {} },
+  plugins: []
+}