feat: refine quick wins workflow and calendar layout

app/static/js/app.js

@@ -7,6 +7,12 @@
   const quickTaskDialog = document.getElementById("quickTaskDialog");
   const quickTaskOpen = document.getElementById("quickTaskOpen");
   const quickTaskClose = document.getElementById("quickTaskClose");
+  const quickWinsSubmit = document.getElementById("quickWinsSubmit");
+  const quickWinInputs = document.querySelectorAll("[data-quick-win-input]");
+  const quickWinCustomToggle = document.querySelector("[data-quick-win-custom-toggle]");
+  const quickWinCustomFields = document.getElementById("quickWinCustomFields");
+  const quickWinTitle = document.getElementById("quick-title");
+  const quickWinEffort = document.getElementById("quick-effort");
 
   document.querySelectorAll("[data-complete-action]").forEach((button) => {
     button.addEventListener("click", () => {
@@ -39,6 +45,48 @@
     quickTaskClose.addEventListener("click", () => quickTaskDialog.close());
   }
 
+  function updateQuickWinsState() {
+    const selectedPresetCount = [...quickWinInputs].filter((input) => input.checked).length;
+    const customSelected = quickWinCustomToggle?.checked === true;
+    const totalCount = selectedPresetCount + (customSelected ? 1 : 0);
+
+    if (quickWinCustomFields) {
+      quickWinCustomFields.hidden = !customSelected;
+    }
+
+    if (quickWinTitle) {
+      quickWinTitle.disabled = !customSelected;
+      quickWinTitle.required = customSelected;
+    }
+
+    if (quickWinEffort) {
+      quickWinEffort.disabled = !customSelected;
+      quickWinEffort.required = customSelected;
+    }
+
+    if (quickWinsSubmit) {
+      quickWinsSubmit.disabled = totalCount === 0;
+      quickWinsSubmit.textContent = totalCount <= 1 ? "Quick-Win sichern" : "Quick Wins sichern";
+    }
+  }
+
+  quickWinInputs.forEach((input) => input.addEventListener("change", updateQuickWinsState));
+  if (quickWinCustomToggle) {
+    quickWinCustomToggle.addEventListener("change", updateQuickWinsState);
+  }
+  updateQuickWinsState();
+
+  if (quickTaskDialog) {
+    quickTaskDialog.addEventListener("close", () => {
+      const quickWinsForm = document.getElementById("quickWinsForm");
+      if (!quickWinsForm) {
+        return;
+      }
+      quickWinsForm.reset();
+      updateQuickWinsState();
+    });
+  }
+
   const pushButton = document.getElementById("pushToggle");
   const pushHint = document.getElementById("pushHint");
   const vapidKey = document.body.dataset.pushKey;