refactor: consolidate types, remove dead code, and fix minor bugs

Replace DayOfWeek with chrono::Weekday via extension traits, unify
RateLimitConfig into the config module, and remove the unused time
command, BannerState, and ClassDetails stub. Fix open_only query
parameter to respect false values and correct 12-hour time display.

web/src/main.tsx

@@ -1,14 +1,11 @@
 import { StrictMode } from "react";
 import ReactDOM from "react-dom/client";
 import { RouterProvider, createRouter } from "@tanstack/react-router";
-import { ThemeProvider } from "next-themes";
-import { Theme } from "@radix-ui/themes";
 
 // Import the generated route tree
 import { routeTree } from "./routeTree.gen";
 
 import "./styles.css";
-import reportWebVitals from "./reportWebVitals.ts";
 
 // Create a new router instance
 const router = createRouter({
@@ -33,21 +30,7 @@ if (rootElement && !rootElement.innerHTML) {
   const root = ReactDOM.createRoot(rootElement);
   root.render(
     <StrictMode>
-      <ThemeProvider
-        attribute="class"
-        defaultTheme="system"
-        enableSystem
-        disableTransitionOnChange={false}
-      >
-        <Theme>
-          <RouterProvider router={router} />
-        </Theme>
-      </ThemeProvider>
+      <RouterProvider router={router} />
     </StrictMode>
   );
 }
-
-// If you want to start measuring performance in your app, pass a function
-// to log results (for example: reportWebVitals(console.log))
-// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
-reportWebVitals();

web/src/reportWebVitals.ts

@@ -1,13 +0,0 @@
-const reportWebVitals = (onPerfEntry?: () => void) => {
-  if (onPerfEntry && onPerfEntry instanceof Function) {
-    void import("web-vitals").then(({ onCLS, onINP, onFCP, onLCP, onTTFB }) => {
-      onCLS(onPerfEntry);
-      onINP(onPerfEntry);
-      onFCP(onPerfEntry);
-      onLCP(onPerfEntry);
-      onTTFB(onPerfEntry);
-    });
-  }
-};
-
-export default reportWebVitals;