feat: Add new Alpine.js component TypeScript files

Extracted inline JavaScript from templates into proper TypeScript modules:

- api-explorer-docs.ts: API explorer page functionality
- collection-rules.ts: Collection rules management page
- index.ts: Homepage theme and auth redirect
- login.ts: Login page theme initialization
- profile-modal.ts: Profile modal close and escape key
- profile.ts: Profile page delete account
- register.ts: Registration page theme init
- toast-error.ts: Error toast with retry button
- unlinked_books.ts: Unlinked books management page

Each file:
- Uses ES imports (showToast, getToken, etc.)
- Has proper TypeScript types
- Registers with Alpine.js via Alpine.global()
- Uses async/await for API calls

web/src/toast-error.ts

@@ -0,0 +1,37 @@
+import { Alpine } from "./alpine";
+
+function showErrorToast(message: string): void {
+  // Use the global showToast from toast.ts
+  if (typeof (window as any).showToast !== "undefined") {
+    (window as any).showToast.error(message, 8000);
+
+    // Add retry button to the toast
+    setTimeout(() => {
+      const toastContainer = document.getElementById("toast-container");
+      if (toastContainer && toastContainer.lastElementChild) {
+        const toast = toastContainer.lastElementChild as HTMLElement;
+        const retryBtn = document.createElement("button");
+        retryBtn.className =
+          "ml-4 px-3 py-1 bg-white/20 hover:bg-white/30 rounded text-sm font-medium transition-colors";
+        retryBtn.textContent = "Retry";
+        retryBtn.onclick = function () {
+          window.location.reload();
+        };
+
+        // Insert before the close button
+        const closeBtn = toast.querySelector(".toast-close");
+        if (closeBtn && closeBtn.parentElement) {
+          closeBtn.parentElement.insertBefore(retryBtn, closeBtn);
+        } else {
+          toast.appendChild(retryBtn);
+        }
+      }
+    }, 100);
+  }
+}
+
+export { showErrorToast };
+
+Alpine.global("toastError", {
+  showErrorToast,
+});