feat: add save-for-later buttons to frontend pages

Add shared save-later.js module and per-item save buttons to
blogroll, podroll, listening, and news pages. Buttons are hidden
by default and only visible when logged in. Posts to the readlater
plugin API at /readlater/save.

_includes/layouts/base.njk

@@ -453,6 +453,8 @@
   <script src="/js/webmentions.js?v={{ '/js/webmentions.js' | hash }}" defer></script>
   {# Admin auth detection - shows dashboard link + FAB when logged in #}
   <script src="/js/admin.js?v={{ '/js/admin.js' | hash }}" defer></script>
+  {# Save for Later buttons — active when logged in #}
+  <script src="/js/save-later.js?v={{ '/js/save-later.js' | hash }}" defer></script>
 
   {# Floating Action Button - visible only when logged in #}
   <div x-data="{ show: false, open: false }"

blogroll.njk

@@ -176,6 +176,17 @@ permalink: /blogroll/
                 </svg>
                 Visit Blog
               </a>
+              <button
+                class="save-later-btn"
+                :data-save-url="item.url"
+                :data-save-title="item.title"
+                data-save-source="blogroll"
+                title="Save for later"
+                aria-label="Save for later"
+              >
+                <span class="save-later-icon">📑</span>
+                <span class="save-later-label">Save</span>
+              </button>
             </div>
           </article>
         </template>

css/tailwind.css

@@ -741,3 +741,33 @@
     display: none;
   }
 }
+
+/* Save for Later buttons — hidden until auth confirmed */
+.save-later-btn {
+  display: none;
+}
+
+body[data-indiekit-auth="true"] .save-later-btn {
+  display: inline-flex;
+  align-items: center;
+  gap: 4px;
+  cursor: pointer;
+  background: none;
+  border: 1px solid transparent;
+  border-radius: 6px;
+  padding: 2px 8px;
+  font-size: 0.75rem;
+  color: #6b7280;
+  transition: all 0.2s ease;
+}
+
+body[data-indiekit-auth="true"] .save-later-btn:hover {
+  border-color: #d1d5db;
+  color: #4a9eff;
+}
+
+.save-later--saved {
+  color: #4a9eff !important;
+  opacity: 0.6;
+  pointer-events: none;
+}

js/save-later.js

@@ -0,0 +1,51 @@
+/**
+ * Save for Later — shared frontend module
+ * Handles save button clicks on blogroll, podroll, listening, and news pages.
+ * Only active when user is logged in (body[data-indiekit-auth="true"]).
+ */
+(function () {
+  function isLoggedIn() {
+    return document.body.getAttribute('data-indiekit-auth') === 'true';
+  }
+
+  async function saveForLater(button) {
+    var url = button.dataset.saveUrl;
+    var title = button.dataset.saveTitle || url;
+    var source = button.dataset.saveSource || 'manual';
+    if (!url) return;
+
+    button.disabled = true;
+
+    try {
+      var response = await fetch('/readlater/save', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ url: url, title: title, source: source }),
+        credentials: 'same-origin'
+      });
+
+      if (response.ok) {
+        button.classList.add('save-later--saved');
+        button.title = 'Saved';
+        button.setAttribute('aria-label', 'Saved');
+        var label = button.querySelector('.save-later-label');
+        if (label) label.textContent = 'Saved';
+        var icon = button.querySelector('.save-later-icon');
+        if (icon) icon.textContent = '🔖';
+      } else {
+        button.disabled = false;
+      }
+    } catch (e) {
+      button.disabled = false;
+    }
+  }
+
+  document.addEventListener('click', function (e) {
+    if (!isLoggedIn()) return;
+    var button = e.target.closest('.save-later-btn');
+    if (button) {
+      e.preventDefault();
+      saveForLater(button);
+    }
+  });
+})();

listening.njk

@@ -295,6 +295,16 @@ withSidebar: true
           <div class="text-right flex-shrink-0">
             <span class="inline-block px-2 py-0.5 text-xs font-medium bg-purple-100 dark:bg-purple-900/30 text-purple-700 dark:text-purple-400 rounded-full mb-1">Funkwhale</span>
             <span class="text-xs text-surface-500 block">{{ listening.relativeTime }}</span>
+            <button
+              class="save-later-btn mt-1"
+              data-save-url="{{ listening.trackUrl }}"
+              data-save-title="{{ listening.track }} — {{ listening.artist }}"
+              data-save-source="listening"
+              title="Save for later"
+              aria-label="Save for later"
+            >
+              <span class="save-later-icon">📑</span>
+            </button>
           </div>
         </div>
         {% endfor %}
@@ -333,6 +343,16 @@ withSidebar: true
           <div class="text-right flex-shrink-0">
             <span class="inline-block px-2 py-0.5 text-xs font-medium bg-red-100 dark:bg-red-900/30 text-red-700 dark:text-red-400 rounded-full mb-1">Last.fm</span>
             <span class="text-xs text-surface-500 block">{{ scrobble.relativeTime }}</span>
+            <button
+              class="save-later-btn mt-1"
+              data-save-url="{{ scrobble.trackUrl }}"
+              data-save-title="{{ scrobble.track }} — {{ scrobble.artist }}"
+              data-save-source="listening"
+              title="Save for later"
+              aria-label="Save for later"
+            >
+              <span class="save-later-icon">📑</span>
+            </button>
           </div>
         </div>
         {% endfor %}
@@ -381,6 +401,16 @@ withSidebar: true
         </div>
 
         <span class="text-red-500 flex-shrink-0">&#9829;</span>
+        <button
+          class="save-later-btn flex-shrink-0"
+          data-save-url="{{ track.trackUrl }}"
+          data-save-title="{{ track.track }} — {{ track.artist }}"
+          data-save-source="listening"
+          title="Save for later"
+          aria-label="Save for later"
+        >
+          <span class="save-later-icon">📑</span>
+        </button>
       </div>
       {% endfor %}
     </div>
@@ -424,6 +454,16 @@ withSidebar: true
           <p class="text-xs text-surface-500 truncate">{{ favorite.album }}</p>
           {% endif %}
         </div>
+        <button
+          class="save-later-btn flex-shrink-0"
+          data-save-url="{{ favorite.trackUrl }}"
+          data-save-title="{{ favorite.track }} — {{ favorite.artist }}"
+          data-save-source="listening"
+          title="Save for later"
+          aria-label="Save for later"
+        >
+          <span class="save-later-icon">📑</span>
+        </button>
       </div>
       {% endfor %}
     </div>

news.njk

@@ -160,6 +160,17 @@ withSidebar: true
                       <span class="text-primary-600 dark:text-primary-400" x-text="'#' + cat"></span>
                     </template>
                   </span>
+                  <button
+                    class="save-later-btn"
+                    :data-save-url="item.link"
+                    :data-save-title="item.title"
+                    data-save-source="news"
+                    title="Save for later"
+                    aria-label="Save for later"
+                  >
+                    <span class="save-later-icon">📑</span>
+                    <span class="save-later-label">Save</span>
+                  </button>
                 </div>
               </div>
             </article>
@@ -193,6 +204,17 @@ withSidebar: true
                   <span class="truncate max-w-[60%]" x-text="truncate(item.sourceTitle || item.feedTitle, 20)"></span>
                   <time :datetime="item.pubDate" x-text="formatDate(item.pubDate)"></time>
                 </div>
+                <button
+                  class="save-later-btn mt-2"
+                  :data-save-url="item.link"
+                  :data-save-title="item.title"
+                  data-save-source="news"
+                  title="Save for later"
+                  aria-label="Save for later"
+                >
+                  <span class="save-later-icon">📑</span>
+                  <span class="save-later-label">Save</span>
+                </button>
               </div>
             </article>
           </template>
@@ -249,6 +271,17 @@ withSidebar: true
                       <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M10 6H6a2 2 0 00-2 2v10a2 2 0 002 2h10a2 2 0 002-2v-4M14 4h6m0 0v6m0-6L10 14"/>
                     </svg>
                   </a>
+                  <button
+                    class="save-later-btn"
+                    :data-save-url="item.link"
+                    :data-save-title="item.title"
+                    data-save-source="news"
+                    title="Save for later"
+                    aria-label="Save for later"
+                  >
+                    <span class="save-later-icon">📑</span>
+                    <span class="save-later-label">Save for Later</span>
+                  </button>
                   <div x-show="item.categories?.length" class="flex flex-wrap gap-2">
                     <template x-for="cat in item.categories" :key="cat">
                       <span class="px-2 py-1 text-xs bg-primary-100 dark:bg-primary-900/30 text-primary-700 dark:text-primary-400 rounded-full" x-text="cat"></span>

podroll.njk

@@ -144,6 +144,17 @@ permalink: /podroll/
                 </svg>
                 RSS
               </a>
+              <button
+                class="save-later-btn"
+                :data-save-url="episode.url"
+                :data-save-title="episode.title"
+                data-save-source="podroll"
+                title="Save for later"
+                aria-label="Save for later"
+              >
+                <span class="save-later-icon">📑</span>
+                <span class="save-later-label">Save</span>
+              </button>
             </div>
           </article>
         </template>