fix(dashboard): use anchor tags for client-side rendered book cards

When switching libraries via TypeScript, renderBookCard() built book
cards as <div> elements with data-action="view-book" for event
delegation, but the click handler was commented out — making books
unclickable after any library switch. The SSR path used proper <a> tags.

Now renderBookCard() wraps cards in <a href="/media/{id}"> to match the
SSR BookCard template, so book links work identically regardless of
whether content was server-rendered or client-rendered.

Also removed the dead view-book handler code and viewBook() stub.

Additionally fixed a listener re-registration bug where the input and
library-select change listeners were nested inside the click callback,
causing them to be registered N times after N clicks. Moved them to
initDashboard() scope so they register exactly once.

web/src/dashboard.ts

@@ -326,10 +326,9 @@ function renderBookCard(book: BookInfo): string {
   const coverUrl = book.cover_image_path || "/static/placeholder-book.svg";
 
   return `
+        <a href="/media/${book.media_item_id}">
         <div class="book-card flex-shrink-0 w-36 rounded-lg overflow-hidden snap-start cursor-pointer
                         transition-transform duration-200 hover:scale-105"
-             data-action="view-book"
-             data-book-id="${book.media_item_id}"
              tabindex="0"
              role="button"
              aria-label="View ${book.title}">
@@ -348,12 +347,10 @@ function renderBookCard(book: BookInfo): string {
                 ${book.author ? `<p class="text-sm line-clamp-1" style="color: var(--text-secondary)">${book.author}</p>` : ""}
             </div>
         </div>
+        </a>
     `;
 }
 
-// function viewBook(bookId: string): void {
-//   console.log("View book:", bookId);
-// }
 
 async function reloadPage(): Promise<void> {
   //Get current library from dropdown
@@ -468,11 +465,6 @@ function initDashboard() {
         break;
       }
 
-      // case "view-book": {
-      //   const bookId = target.dataset.bookId || actionElem?.dataset.bookId;
-      //   if (bookId) viewBook(bookId);
-      //   break;
-      // }
 
       case "reload-page":
         reloadPage();
@@ -485,33 +477,34 @@ function initDashboard() {
       }
     }
 
-    document.addEventListener("input", (e: Event) => {
-      const target = e.target as HTMLElement;
-      const actionElem = target.closest("[data-input-action]") as HTMLElement;
-      const action = actionElem?.getAttribute("data-input-action");
+  });
 
-      switch (action) {
-        case "update-items-count": {
-          const input = target as HTMLInputElement;
-          const displayTarget = input.getAttribute("target");
-          if (displayTarget) updateItemsCount(input, displayTarget);
-          break;
-        }
+  document.addEventListener("input", (e: Event) => {
+    const target = e.target as HTMLElement;
+    const actionElem = target.closest("[data-input-action]") as HTMLElement;
+    const action = actionElem?.getAttribute("data-input-action");
+
+    switch (action) {
+      case "update-items-count": {
+        const input = target as HTMLInputElement;
+        const displayTarget = input.getAttribute("target");
+        if (displayTarget) updateItemsCount(input, displayTarget);
+        break;
       }
-    });
-    // Load saved library on page load
-    const librarySelect = document.getElementById(
-      "library-select",
-    ) as HTMLSelectElement;
-    if (librarySelect) {
-      librarySelect.addEventListener("change", (e) => {
-        const target = e.target as HTMLSelectElement;
-        if (target.value) {
-          switchLibrary(target.value);
-        }
-      });
     }
   });
+
+  const librarySelect = document.getElementById(
+    "library-select",
+  ) as HTMLSelectElement;
+  if (librarySelect) {
+    librarySelect.addEventListener("change", (e) => {
+      const target = e.target as HTMLSelectElement;
+      if (target.value) {
+        switchLibrary(target.value);
+      }
+    });
+  }
 }
 
 export { initDashboard };