Verlauf aufgeraeumt + vollstaendiger README-Screenshot

- Verlauf zeigt nur abgehakte Saetze (nicht gemachte werden nicht mehr
  uebernommen); keine ✓/□-Boxen mehr, Uebungsname ohne Tages-Praefix,
  Saetze kompakt in einer Zeile -> deutlich weniger Text
- assets/screenshot.png neu: vollstaendige Session (alle Uebungen mit
  Werten) statt halb-leerer Ansicht
- Tests: 170 Checks gruen (40+18+52+32+28)

app.js

@@ -1297,25 +1297,17 @@ function renderSetSummary(s, a) {
   const byEx = {};
   for (const e of s.entries || []) (byEx[e.exercise] = byEx[e.exercise] || []).push(e);
   for (const exKey of Object.keys(byEx)) {
-    const li = el("li", "hist-entry");
     const sorted = byEx[exKey].sort((x, y) => x.sort - y.sort)
-      .filter(e => e.weight || e.reps);
+      .filter(e => e.done);
     if (!sorted.length) continue;
-    li.appendChild(el("span", "ex-name", exKey + ": "));
+    const li = el("li", "hist-entry");
+    const name = exKey.includes("/")
+      ? exKey.split("/").slice(1).join("/") : exKey;
+    li.appendChild(el("span", "ex-name", name + ": "));
     const setsWrap = el("span", "hist-sets");
-    sorted.forEach((e, idx) => {
+    setsWrap.textContent = sorted.map(e =>
-      const w = e.weight || t("empty_label");
+      (e.weight || t("empty_label")) + " " + unit + " × "
-      const r = e.reps || t("empty_label");
+      + (e.reps || t("empty_label")) + " " + repsUnit).join("  ·  ");
-      const span = el("span", "hist-set");
-      span.appendChild(el("span", e.done ? "set-done-box" : "set-undone-box",
-        e.done ? "✓" : "□"));
-      span.appendChild(document.createTextNode(
-        w + " " + unit + " × " + r + " " + repsUnit));
-      setsWrap.appendChild(span);
-      if (idx < sorted.length - 1) {
-        setsWrap.appendChild(document.createTextNode("  ·  "));
-      }
-    });
     li.appendChild(setsWrap);
     ul.appendChild(li);
   }

tests/test_ui.js

@@ -169,9 +169,9 @@ async function main() {
     window.document.querySelector('.tab[data-view="history"]').click();
     await waitFor(dom, d => d.window.document.querySelectorAll(".hist-card").length === 1);
     const histCard = () => window.document.querySelector(".hist-card");
-    check("Verlauf: Haken-Box zeigt Abhak-Status",
+    check("Verlauf: nur abgehakte Saetze, kompakt",
-      !!histCard().querySelector(".set-done-box")
+      !histCard().querySelector(".set-done-box")
-      && histCard().querySelector(".set-done-box").textContent === "✓");
+      && !histCard().querySelector(".hist-sets").textContent.includes("□"));
     check("Verlauf: Abgehaktes Set mit Gewicht", await waitFor(dom, d =>
       d.window.document.querySelector(".hist-sets").textContent.includes("18,5")));