fix(matcher): use folder path as series context

static/app.js

@@ -219,11 +219,15 @@ $("#search-form").addEventListener("submit", async (e) => {
             <div class="row">
               <select data-lib="${i}">${opts || "<option value=''>— keine Library —</option>"}</select>
               <button data-req="${i}">Anfragen</button>
+              ${r.series_id ? `<button class="secondary" data-series="${i}">Ganze Serie…</button>` : ""}
             </div>
           </div>
         </div>`
       )
       .join("");
+    box.querySelectorAll("[data-series]").forEach((btn) =>
+      btn.addEventListener("click", () => openSeriesDialog(results[btn.dataset.series]))
+    );
     box.querySelectorAll("[data-req]").forEach((btn) =>
       btn.addEventListener("click", async () => {
         const i = btn.dataset.req;
@@ -255,6 +259,119 @@ $("#search-form").addEventListener("submit", async (e) => {
   }
 });
 
+// ---- request a whole series ----
+let seriesEpisodes = [];
+
+function renderSeriesList() {
+  const from = parseInt($("#series-from").value);
+  const to = parseInt($("#series-to").value);
+  const inRange = (e) =>
+    (isNaN(from) || (e.volume != null && e.volume >= from)) &&
+    (isNaN(to) || (e.volume != null && e.volume <= to));
+  let previous = null;
+  $("#series-list").innerHTML = seriesEpisodes
+    .map((e, i) => {
+      // make holes in the numbering visible - the crawl cannot reach every episode
+      let gap = "";
+      if (e.volume != null && previous != null && e.volume > previous + 1) {
+        const missing = e.volume - previous - 1;
+        gap = `<div class="gap">… ${missing} Folge${missing > 1 ? "n" : ""} nicht bei Audible gefunden (${previous + 1}–${e.volume - 1})</div>`;
+      }
+      if (e.volume != null) previous = e.volume;
+      return `${gap}<label>
+        <input type="checkbox" data-ep="${i}" ${inRange(e) ? "checked" : ""}>
+        <span class="num">${e.volume ?? "—"}</span>
+        <span>${esc(e.title)}</span>
+      </label>`;
+    })
+    .join("");
+  updateSeriesCount();
+}
+
+function seriesChecked() {
+  return [...$("#series-list").querySelectorAll("input:checked")].map(
+    (c) => seriesEpisodes[c.dataset.ep]
+  );
+}
+
+function updateSeriesCount() {
+  const n = seriesChecked().length;
+  const btn = $("#series-submit");
+  btn.textContent = n ? `${n} anfragen` : "Anfragen";
+  btn.disabled = n === 0;
+}
+
+async function openSeriesDialog(result) {
+  const dlg = $("#series-dialog");
+  $("#series-title").textContent = result.series || "Serie";
+  $("#series-info").innerHTML = '<span class="spinner"></span> Folgen werden gesucht…';
+  $("#series-list").innerHTML = "";
+  $("#series-from").value = "";
+  $("#series-to").value = "";
+  $("#series-library").innerHTML = libOptions("audiobook") || "<option value=''>— keine Library —</option>";
+  $("#series-submit").disabled = true;
+  dlg.showModal();
+  try {
+    seriesEpisodes = await api(
+      `/api/search/series?series_id=${encodeURIComponent(result.series_id)}` +
+        `&title=${encodeURIComponent(result.series || result.title)}`
+    );
+  } catch (err) {
+    $("#series-info").textContent = err.message;
+    return;
+  }
+  const numbered = seriesEpisodes.filter((e) => e.volume != null);
+  $("#series-info").textContent =
+    `${seriesEpisodes.length} Folgen gefunden` +
+    (numbered.length ? ` (Nr. ${numbered[0].volume}–${numbered[numbered.length - 1].volume})` : "") +
+    ". Audible hat keine Serien-Abfrage — einzelne Folgen können fehlen.";
+  renderSeriesList();
+}
+
+$("#series-from").addEventListener("input", renderSeriesList);
+$("#series-to").addEventListener("input", renderSeriesList);
+$("#series-list").addEventListener("change", updateSeriesCount);
+$("#series-all").addEventListener("click", () => {
+  $("#series-list").querySelectorAll("input").forEach((c) => (c.checked = true));
+  updateSeriesCount();
+});
+$("#series-none").addEventListener("click", () => {
+  $("#series-list").querySelectorAll("input").forEach((c) => (c.checked = false));
+  updateSeriesCount();
+});
+$("#series-cancel").addEventListener("click", () => $("#series-dialog").close());
+
+$("#series-submit").addEventListener("click", async () => {
+  const libId = $("#series-library").value;
+  if (!libId) { toast("Erst eine Audiobook-Library anlegen (Tab Libraries)", true); return; }
+  const items = seriesChecked().map((e) => ({
+    title: e.title, authors: e.authors, narrator: e.narrator || "",
+    external_id: e.external_id, year: e.year, series: e.series,
+    volume: e.volume, cover_url: e.cover_url,
+  }));
+  const btn = $("#series-submit");
+  btn.disabled = true;
+  btn.innerHTML = '<span class="spinner"></span> Lege an…';
+  try {
+    const res = await api("/api/requests/bulk-items", {
+      method: "POST",
+      body: JSON.stringify({ library_id: parseInt(libId), items }),
+    });
+    setLastLib("audiobook", libId);
+    toast(
+      `${res.created.length} Anfragen angelegt` +
+        (res.skipped ? `, ${res.skipped} bereits vorhanden` : "")
+    );
+    $("#series-dialog").close();
+    refreshMissingBadge();
+  } catch (err) {
+    toast(err.message, true);
+  } finally {
+    btn.disabled = false;
+    updateSeriesCount();
+  }
+});
+
 // ---- manual request ----
 $("#manual-btn").addEventListener("click", () => {
   const dlg = $("#manual-dialog");