Add: tauri frontend as bevy alternative

frontend/tauri-ui/src/styles.css

@@ -0,0 +1,54 @@
+:root {
+  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
+}
+
+body {
+  margin: 0;
+  background: transparent;
+  color: #e2e8f0;
+  overflow: hidden;
+}
+
+.app {
+  width: 100vw;
+  height: 100vh;
+  position: relative;
+}
+
+.canvas-host {
+  position: absolute;
+  inset: 0;
+}
+
+.debug-panel {
+  position: absolute;
+  top: 8px;
+  left: 8px;
+  min-width: 220px;
+  padding: 10px;
+  border: 1px solid rgba(255, 255, 255, 0.2);
+  background: rgba(15, 23, 42, 0.55);
+  backdrop-filter: blur(4px);
+  border-radius: 8px;
+}
+
+dl {
+  display: grid;
+  grid-template-columns: 120px 1fr;
+  gap: 8px 12px;
+}
+
+dt {
+  font-weight: 700;
+  text-transform: uppercase;
+  font-size: 12px;
+  opacity: 0.8;
+}
+
+dd {
+  margin: 0;
+}
+
+.error {
+  color: #fecaca;
+}