Add Plausible analytics support with configurable domain and script URL

Made-with: Cursor

frontend/.env.example

@@ -4,3 +4,7 @@ VITE_API_URL=http://localhost:3001
 
 # Nostr relays for fetching user profile metadata (comma-separated)
 VITE_NOSTR_RELAYS=wss://relay.damus.io,wss://relay.nostr.band,wss://nos.lol
+
+# Plausible analytics (optional; leave empty to disable)
+VITE_PLAUSIBLE_DOMAIN=faucet.lnpulse.app
+VITE_PLAUSIBLE_SCRIPT_URL=https://analytics.azzamo.net/js/script.js

frontend/src/main.tsx

@@ -5,6 +5,17 @@ import { ErrorBoundary } from "./ErrorBoundary";
 import { ToastProvider } from "./contexts/ToastContext";
 import "./styles/global.css";
 
+// Plausible analytics (injected in head when env vars are set)
+const plausibleDomain = import.meta.env.VITE_PLAUSIBLE_DOMAIN as string | undefined;
+const plausibleScriptUrl = import.meta.env.VITE_PLAUSIBLE_SCRIPT_URL as string | undefined;
+if (plausibleDomain && plausibleScriptUrl) {
+  const script = document.createElement("script");
+  script.defer = true;
+  script.dataset.domain = plausibleDomain;
+  script.src = plausibleScriptUrl;
+  document.head.appendChild(script);
+}
+
 const rootEl = document.getElementById("root");
 if (!rootEl) {
   document.body.innerHTML = "<p>Root element #root not found.</p>";

frontend/src/vite-env.d.ts

@@ -2,6 +2,8 @@
 
 interface ImportMetaEnv {
   readonly VITE_API_URL: string;
+  readonly VITE_PLAUSIBLE_DOMAIN: string;
+  readonly VITE_PLAUSIBLE_SCRIPT_URL: string;
 }
 
 interface ImportMeta {