feat(ui): deleted-annotation history on the book page

Replace the Notes & Highlights 'coming soon' stub with a real modal:
active counts plus a 'Recently deleted' section listing every tombstoned
highlight, note, and bookmark (type badge, deletion time in the user's
timezone, text preview), each with Restore and Delete-permanently
actions. Restore returns the annotation to every synced device; Delete
permanently is confirmed before purging. The list is server-rendered
from MediaDetail.DeletedAnnotations — no fetch on open.

Alpine handlers in book-detail.ts call the new restore/purge endpoints
and reload on success. style.css picks up the line-clamp utilities used
by the text previews.

templates/book_detail.templ

@@ -425,7 +425,7 @@ templ BookDetail(user User, book handlers.MediaDetail, errorMessage string) {
 				}
 			</div>
 			@ProgressSyncModal(user, book)
-			@NotesHighlightsModal(book)
+			@NotesHighlightsModal(user, book)
 			@MetadataEditorModal(book)
 			@ErrorToast(errorMessage)
 		</body>

templates/book_detail_modals.templ

@@ -128,25 +128,106 @@ templ ProgressSyncModal(user User, book handlers.MediaDetail) {
 	</div>
 }
 
-templ NotesHighlightsModal(book handlers.MediaDetail) {
+templ NotesHighlightsModal(user User, book handlers.MediaDetail) {
 	<div
 		id="notes-modal"
-		class="hidden fixed inset-0 z-50 flex items-center justify-center p-4"
+		class="hidden fixed inset-0 z-50 flex items-center justify-center overflow-y-auto p-4"
 		style="background-color: var(--surface-overlay);"
 	>
 		<div
-			class="card w-full max-w-2xl p-8 text-center"
+			class="card w-full max-w-2xl my-8 flex flex-col max-h-[90vh]"
 			style="box-shadow: var(--shadow-pop);"
 		>
-			<span class="inline-grid place-items-center h-14 w-14 rounded-2xl mb-4" style="background-color: var(--accent-muted); color: var(--accent);">
-				@Icon("edit", "h-7 w-7")
+			<div class="flex justify-between items-center p-6 border-b flex-shrink-0" style="border-color: var(--border);">
+				<div class="flex items-center gap-3">
+					<span class="grid place-items-center h-10 w-10 rounded-xl shrink-0" style="background-color: var(--accent-muted); color: var(--accent);">
+						@Icon("edit", "h-5 w-5")
 					</span>
-			<h2 class="text-2xl font-bold mb-2" style="color: var(--text-primary)">Notes & Highlights</h2>
-			<p class="mb-2" style="color: var(--text-secondary);">
-				This book has <strong>{ book.NotesCount }</strong> notes and <strong>{ book.HighlightsCount }</strong> highlights.
-			</p>
-			<p class="mb-6" style="color: var(--text-secondary);">Feature coming soon!</p>
 					<div>
+						<h2 class="text-xl font-bold" style="color: var(--text-primary)">Notes &amp; Highlights</h2>
+						<p class="text-sm" style="color: var(--text-secondary);">{ book.Title }</p>
+					</div>
+				</div>
+				<button
+					@click="hideNotesModal()"
+					class="icon-btn"
+					aria-label="Close"
+				>
+					@Icon("close", "h-5 w-5")
+				</button>
+			</div>
+
+			<div class="p-6 overflow-y-auto flex-1 min-h-0">
+				<div class="flex items-center justify-center gap-6 mb-6">
+					<div class="text-center">
+						<div class="text-3xl font-bold" style="color: var(--accent);">{ book.HighlightsCount }</div>
+						<div class="text-xs uppercase tracking-wide" style="color: var(--text-secondary);">Highlights</div>
+					</div>
+					<div class="text-center">
+						<div class="text-3xl font-bold" style="color: var(--accent);">{ book.NotesCount }</div>
+						<div class="text-xs uppercase tracking-wide" style="color: var(--text-secondary);">Notes</div>
+					</div>
+					<div class="text-center">
+						<div class="text-3xl font-bold" style="color: var(--text-secondary);">{ len(book.DeletedAnnotations) }</div>
+						<div class="text-xs uppercase tracking-wide" style="color: var(--text-secondary);">Deleted</div>
+					</div>
+				</div>
+
+				if len(book.DeletedAnnotations) == 0 {
+					<div class="text-center py-6">
+						<p style="color: var(--text-secondary);">No deleted annotations. Highlights, notes, and bookmarks removed on the web or on a synced device appear here for recovery.</p>
+					</div>
+				} else {
+					<div class="flex items-center gap-2 mb-3">
+						<h3 class="text-sm font-semibold uppercase tracking-wide" style="color: var(--text-secondary);">Recently deleted</h3>
+						<span class="badge" style="background-color: var(--accent-muted); color: var(--accent);">{ len(book.DeletedAnnotations) }</span>
+					</div>
+					<p class="text-xs mb-4" style="color: var(--text-secondary);">
+						Deleted entries are kept for the sync retention window before being removed automatically. Restore returns them to every synced device; Delete permanently removes them immediately.
+					</p>
+					<div class="space-y-3">
+						for _, ann := range book.DeletedAnnotations {
+							<div class="card p-4" data-deleted-annotation={ ann.ID }>
+								<div class="flex justify-between items-start gap-3 mb-2">
+									<div class="flex items-center gap-2">
+										<span class="badge" style="background-color: var(--accent-muted); color: var(--accent);">{ ann.AnnotationType }</span>
+										<span class="text-xs" style="color: var(--text-secondary);">
+											{ FormatInTimezone(ann.DeletedAt, user.Timezone) }
+										</span>
+									</div>
+									<div class="flex items-center gap-2 shrink-0">
+										<button
+											@click={"restoreDeletedAnnotation('" + ann.AnnotationType + "', '" + ann.ID + "')"}
+											class="btn btn-secondary text-xs px-3 py-1.5"
+										>
+											@Icon("refresh", "h-3.5 w-3.5")
+											Restore
+										</button>
+										<button
+											@click={"purgeDeletedAnnotation('" + ann.AnnotationType + "', '" + ann.ID + "')"}
+											class="btn btn-ghost text-xs px-3 py-1.5"
+											style="color: var(--status-error);"
+										>
+											@Icon("close", "h-3.5 w-3.5")
+											Delete permanently
+										</button>
+									</div>
+								</div>
+								if ann.DisplayText != "" {
+									<p class="text-sm line-clamp-3" style="color: var(--text-primary);">{ ann.DisplayText }</p>
+								} else {
+									<p class="text-sm italic" style="color: var(--text-secondary);">(no text)</p>
+								}
+								if ann.SecondaryText != "" {
+									<p class="text-xs mt-1 line-clamp-2" style="color: var(--text-secondary);">{ ann.SecondaryText }</p>
+								}
+							</div>
+						}
+					</div>
+				}
+			</div>
+
+			<div class="flex justify-end p-6 border-t flex-shrink-0" style="border-color: var(--border);">
 				<button
 					@click="hideNotesModal()"
 					class="btn btn-primary"

templates/book_detail_templ.go

@@ -1336,7 +1336,7 @@ func BookDetail(user User, book handlers.MediaDetail, errorMessage string) templ
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = NotesHighlightsModal(book).Render(ctx, templ_7745c5c3_Buffer)
+		templ_7745c5c3_Err = NotesHighlightsModal(user, book).Render(ctx, templ_7745c5c3_Buffer)
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}

web/src/book-detail.ts

@@ -116,6 +116,8 @@ interface MetadataEditorState {
   clearRating(): Promise<void>;
   toggleRead(read: boolean): Promise<void>;
   resolveConflict(conflictId: string, winner: string): Promise<void>;
+  restoreDeletedAnnotation(annotationType: string, annotationId: string): Promise<void>;
+  purgeDeletedAnnotation(annotationType: string, annotationId: string): Promise<void>;
 }
 
 Alpine.data("bookDetail", () => {
@@ -194,6 +196,65 @@ Alpine.data("bookDetail", () => {
       }
     },
 
+    async restoreDeletedAnnotation(annotationType: string, annotationId: string) {
+      const mediaId = getMediaId();
+      try {
+        const resp = await fetch(
+          `/api/media-items/${mediaId}/annotations/${annotationId}/restore`,
+          {
+            method: "POST",
+            headers: {
+              Authorization: getAuthHeader(),
+              "Content-Type": "application/json",
+            },
+            body: JSON.stringify({ annotation_type: annotationType }),
+          },
+        );
+        if (!resp.ok) {
+          const err = await resp.json().catch(() => ({}));
+          throw new Error(err.error || "Failed to restore annotation");
+        }
+        showToast("Annotation restored", "success");
+        setTimeout(() => window.location.reload(), 500);
+      } catch (e) {
+        showToast(
+          e instanceof Error ? e.message : "Failed to restore annotation",
+          "error",
+        );
+      }
+    },
+
+    async purgeDeletedAnnotation(annotationType: string, annotationId: string) {
+      if (
+        !confirm(
+          "Permanently delete this annotation? This cannot be undone and it will not reappear on any device.",
+        )
+      ) {
+        return;
+      }
+      const mediaId = getMediaId();
+      try {
+        const resp = await fetch(
+          `/api/media-items/${mediaId}/annotations/${annotationId}?annotation_type=${encodeURIComponent(annotationType)}`,
+          {
+            method: "DELETE",
+            headers: { Authorization: getAuthHeader() },
+          },
+        );
+        if (!resp.ok) {
+          const err = await resp.json().catch(() => ({}));
+          throw new Error(err.error || "Failed to delete annotation");
+        }
+        showToast("Annotation permanently deleted", "success");
+        setTimeout(() => window.location.reload(), 500);
+      } catch (e) {
+        showToast(
+          e instanceof Error ? e.message : "Failed to delete annotation",
+          "error",
+        );
+      }
+    },
+
     init() {
       const ratingAttr = document.body.getAttribute("data-rating");
       this.userRating = ratingAttr ? parseInt(ratingAttr, 10) || 0 : 0;