diff --git a/modules/shared/auth/ui/home.php b/modules/shared/auth/ui/home.php
index e09f44b..12ced9b 100644
--- a/modules/shared/auth/ui/home.php
+++ b/modules/shared/auth/ui/home.php
@@ -1207,6 +1207,7 @@ function render_auth_home_page(array $user, array $otcProducts = [], array $otcM
     echo "  const marketChecklistEditBody = (checklist) => { const items = Array.isArray(checklist.items) ? checklist.items : []; const rows = items.map((item) => '<label class=\"sg-labeled-input-row market-checklist-edit-row\" data-checklist-edit-item><span class=\"sg-label\"><button class=\"sg-checkbox-field sg-checkbox-field--on-grey' + (item.is_completed ? ' sg-form-active' : '') + '\" type=\"button\" role=\"checkbox\" aria-checked=\"' + (item.is_completed ? 'true' : 'false') + '\" aria-label=\"Checklistenpunkt abhaken\" data-checklist-edit-checkbox><span class=\"sg-checkbox-field__mark\" aria-hidden=\"true\">✓</span></button></span><span class=\"market-checklist-edit-control\"><input class=\"sg-interaction-element sg-input-single-line\" type=\"text\" value=\"' + marketEscape(item.label || '') + '\" data-checklist-label><button class=\"sg-interaction-element sg-button sg-button--warning market-checklist-delete\" type=\"button\" aria-label=\"Checklistenpunkt löschen\" data-checklist-delete-item>−</button></span></label>').join(''); return '<div class=\"market-checklist-edit-list\" data-checklist-edit-list>' + rows + '<label class=\"sg-labeled-input-row market-checklist-edit-row market-checklist-edit-row--trailing\" data-checklist-edit-item data-checklist-trailing-item><span class=\"sg-label\"><button class=\"sg-checkbox-field sg-checkbox-field--on-grey\" type=\"button\" role=\"checkbox\" aria-checked=\"false\" aria-label=\"Neuen Checklistenpunkt abhaken\" data-checklist-edit-checkbox><span class=\"sg-checkbox-field__mark\" aria-hidden=\"true\">✓</span></button></span><span class=\"market-checklist-edit-control\"><input class=\"sg-interaction-element sg-input-single-line\" type=\"text\" value=\"\" aria-label=\"Neuer Checklistenpunkt\" data-checklist-label></span></label></div><label class=\"sg-labeled-input-row market-checklist-comment-field\"><span class=\"sg-label\">Kommentar</span><textarea class=\"sg-interaction-element sg-input-multi-line\" name=\"comment\" rows=\"4\" data-checklist-comment>' + marketEscape(checklist.comment || '') + '</textarea></label>'; };";
     echo "  const marketChecklistCard = (id, checklist) => { const headerClass = marketChecklistSignalSegment(checklist.items); const actions = '<button class=\"sg-interaction-element sg-button sg-button--active\" type=\"button\" data-checklist-open aria-expanded=\"false\">Anzeigen</button>' + marketEditButton('checklist', id); return '<article class=\"sg-card sg-card--content-card market-detail-card market-checklist-card--collapsed\" data-component=\"content-card\" data-shared-editable-action-card data-checklist-card><header class=\"sg-card-segment sg-card-segment--header ' + headerClass + ' sg-object-card__header\"><div class=\"sg-strong\">Checkliste</div><div class=\"sg-component-row\">' + actions + '</div></header><div class=\"sg-card-segment sg-card-segment--body sg-card-segment--gray\" data-shared-editable-card-read hidden>' + marketChecklistReadBody(checklist) + '</div><div class=\"sg-card-segment sg-card-segment--body sg-card-segment--gray\" data-shared-editable-card-form hidden><form class=\"sg-form-sections-card market-checklist-form\" data-market-checklist-form data-market-checklist-id=\"' + marketEscape(id) + '\"><div class=\"sg-form-sections-card__body\" data-pattern-part=\"form-body\">' + marketChecklistEditBody(checklist) + '</div><footer class=\"sg-form-sections-card__actions-segment\" data-pattern-part=\"form-actions-segment\"><div class=\"sg-form-sections-card__actions\" data-pattern-part=\"form-actions\"><button class=\"sg-interaction-element sg-button sg-button--active sg-form-sections-card__action\" type=\"button\" data-shared-editable-card-cancel>Abbrechen</button><button class=\"sg-interaction-element sg-button sg-button--process sg-form-sections-card__action\" type=\"submit\">Speichern</button></div></footer><p class=\"sg-body\" data-market-checklist-status aria-live=\"polite\"></p></form></div></article>'; };";
     echo "  const setChecklistVisibility = (card, visible, showRead = visible) => { if (!card) { return; } card.classList.toggle('market-checklist-card--collapsed', !visible); const readView = card.querySelector('[data-shared-editable-card-read]'); const toggle = card.querySelector('[data-checklist-open]'); if (readView) { readView.hidden = !showRead; } if (toggle) { toggle.textContent = visible ? 'Verbergen' : 'Anzeigen'; toggle.setAttribute('aria-expanded', String(visible)); } };";
+    echo "  const setChecklistOpenButtonEnabled = (card, enabled) => { const toggle = card?.querySelector('[data-checklist-open]'); if (!toggle) { return; } toggle.disabled = !enabled; toggle.setAttribute('aria-disabled', String(!enabled)); toggle.classList.toggle('sg-button--inactive', !enabled); };";
     echo "  const setChecklistSignal = (card, items) => { const header = card?.querySelector('header'); if (!header) { return; } header.classList.remove('sg-card-segment--signal-red', 'sg-card-segment--signal-yellow', 'sg-card-segment--signal-green'); header.classList.add(marketChecklistSignalSegment(items)); };";
     echo "  const marketStatusCard = (id, values) => { const headerClass = marketStatusSegment(values.status); const textClass = headerClass === 'sg-card-segment--gray' ? '' : 'sg-text-on-dark'; const actions = marketEditButton('status', id); const header = '<header class=\"sg-card-segment sg-card-segment--header ' + headerClass + ' sg-object-card__header\" data-component-part=\"card-header\"><div class=\"sg-strong ' + textClass + '\">Status: ' + marketEscape(marketStatusLabel(values.status)) + '</div><div class=\"sg-component-row\">' + actions + '</div></header>'; return '<article class=\"sg-card sg-card--content-card market-detail-card\" data-component=\"content-card\" data-shared-editable-action-card>' + header + '<div class=\"sg-card-segment sg-card-segment--body sg-card-segment--gray\" data-shared-editable-card-form hidden>' + marketEditForm('status', id, values) + '</div></article>'; };";
     echo "  const marketEditButton = () => '<button class=\"sg-interaction-element sg-button sg-button--active\" type=\"button\" data-shared-editable-card-edit>Bearbeiten</button>';";
@@ -1244,7 +1245,7 @@ function render_auth_home_page(array $user, array $otcProducts = [], array $otcM
     echo "  const ensureChecklistTrailingItem = (form) => { const list = form?.querySelector('[data-checklist-edit-list]'); if (!list) { return; } const trailing = list.querySelector('[data-checklist-trailing-item]'); if (!trailing || (trailing.querySelector('[data-checklist-label]')?.value || '').trim() !== '') { const item = document.createElement('label'); item.className = 'sg-labeled-input-row market-checklist-edit-row market-checklist-edit-row--trailing'; item.dataset.checklistEditItem = ''; item.dataset.checklistTrailingItem = ''; item.innerHTML = '<span class=\"sg-label\"><button class=\"sg-checkbox-field sg-checkbox-field--on-grey\" type=\"button\" role=\"checkbox\" aria-checked=\"false\" aria-label=\"Neuen Checklistenpunkt abhaken\" data-checklist-edit-checkbox><span class=\"sg-checkbox-field__mark\" aria-hidden=\"true\">✓</span></button></span><span class=\"market-checklist-edit-control\"><input class=\"sg-interaction-element sg-input-single-line\" type=\"text\" value=\"\" aria-label=\"Neuer Checklistenpunkt\" data-checklist-label></span>'; list.append(item); } };";
     echo "  const setChecklistCheckbox = (button, checked) => { if (!button) { return; } button.setAttribute('aria-checked', String(checked)); button.classList.toggle('sg-form-active', checked); };";
     echo "  const persistChecklistReadToggle = async (button) => { const drawer = getMarketDrawer(); const card = button.closest('[data-checklist-card]'); const status = card?.querySelector('[data-checklist-read-status]'); const index = Number(button.dataset.checklistReadCheckbox); let payload = {}; try { payload = drawer?.dataset.marketPayload ? JSON.parse(drawer.dataset.marketPayload) : {}; } catch (error) { return; } const sourceItems = Array.isArray(payload.occurrence?.checklist?.items) ? payload.occurrence.checklist.items : []; if (!sourceItems[index]) { return; } const previous = button.getAttribute('aria-checked') === 'true'; const next = !previous; setChecklistCheckbox(button, next); setChecklistCheckbox(card.querySelectorAll('[data-checklist-edit-checkbox]')[index], next); const items = Array.from(card.querySelectorAll('[data-checklist-read-checkbox]')).map((checkbox, itemIndex) => ({ label: sourceItems[itemIndex]?.label || '', is_completed: checkbox.getAttribute('aria-checked') === 'true' })); setChecklistSignal(card, items); button.disabled = true; if (status) { status.textContent = 'Speichern läuft …'; } try { const response = await fetch('/api/market-occurrence.php', { method: 'POST', credentials: 'same-origin', headers: { 'Content-Type': 'application/json', 'X-CSRF-Token': contentRoot.querySelector('[data-market-csrf-token]')?.dataset.marketCsrfToken || '' }, body: JSON.stringify({ action: 'update_checklist', id: payload.occurrence.id, items: items.map((item) => ({ label: item.label || '', is_completed: Boolean(item.is_completed) })), comment: payload.occurrence.checklist.comment || '' }) }); const result = await response.json(); if (!response.ok || !result.ok) { throw new Error(result.error || 'Speichern fehlgeschlagen.'); } payload.occurrence.checklist = result.checklist; if (drawer) { drawer.dataset.marketPayload = JSON.stringify(payload); } if (status) { status.textContent = ''; } } catch (error) { setChecklistCheckbox(button, previous); setChecklistCheckbox(card.querySelectorAll('[data-checklist-edit-checkbox]')[index], previous); const rollbackItems = Array.from(card.querySelectorAll('[data-checklist-read-checkbox]')).map((checkbox, itemIndex) => ({ label: sourceItems[itemIndex]?.label || '', is_completed: checkbox.getAttribute('aria-checked') === 'true' })); setChecklistSignal(card, rollbackItems); if (status) { status.textContent = error instanceof Error ? error.message : 'Speichern fehlgeschlagen.'; } } finally { button.disabled = false; } };";
-    echo "  document.addEventListener('click', (event) => { const checklistOpen = event.target.closest('[data-checklist-open]'); if (checklistOpen) { const card = checklistOpen.closest('[data-checklist-card]'); const visible = !card?.classList.contains('market-checklist-card--collapsed'); setChecklistVisibility(card, !visible); if (!visible) { card?.querySelector('[data-checklist-read-checkbox]')?.focus(); } return; } const checklistEdit = event.target.closest('[data-checklist-card] [data-shared-editable-card-edit]'); if (checklistEdit) { setChecklistVisibility(checklistEdit.closest('[data-checklist-card]'), true, false); return; } const checkbox = event.target.closest('[data-checklist-edit-checkbox]'); if (checkbox) { event.preventDefault(); setChecklistCheckbox(checkbox, checkbox.getAttribute('aria-checked') !== 'true'); const editCard = checkbox.closest('[data-checklist-card]'); setChecklistSignal(editCard, Array.from(editCard?.querySelectorAll('[data-checklist-edit-item]') || []).filter((item) => !item.hasAttribute('data-checklist-trailing-item')).map((item) => ({ is_completed: item.querySelector('[data-checklist-edit-checkbox]')?.getAttribute('aria-checked') === 'true' }))); return; } const readCheckbox = event.target.closest('[data-checklist-read-checkbox]'); if (readCheckbox) { event.preventDefault(); void persistChecklistReadToggle(readCheckbox); return; } const deleteItem = event.target.closest('[data-checklist-delete-item]'); if (deleteItem) { deleteItem.closest('[data-checklist-edit-item]')?.remove(); ensureChecklistTrailingItem(deleteItem.closest('[data-checklist-form]') || deleteItem.closest('[data-market-checklist-form]')); const deleteCard = deleteItem.closest('[data-checklist-card]'); setChecklistSignal(deleteCard, Array.from(deleteCard?.querySelectorAll('[data-checklist-edit-item]') || []).filter((item) => !item.hasAttribute('data-checklist-trailing-item')).map((item) => ({ is_completed: item.querySelector('[data-checklist-edit-checkbox]')?.getAttribute('aria-checked') === 'true' }))); } });";
+    echo "  document.addEventListener('click', (event) => { const checklistOpen = event.target.closest('[data-checklist-open]'); if (checklistOpen) { const card = checklistOpen.closest('[data-checklist-card]'); const visible = !card?.classList.contains('market-checklist-card--collapsed'); setChecklistVisibility(card, !visible); if (!visible) { card?.querySelector('[data-checklist-read-checkbox]')?.focus(); } return; } const checklistEdit = event.target.closest('[data-checklist-card] [data-shared-editable-card-edit]'); if (checklistEdit) { const checklistCard = checklistEdit.closest('[data-checklist-card]'); setChecklistVisibility(checklistCard, true, false); setChecklistOpenButtonEnabled(checklistCard, false); return; } const checklistCancel = event.target.closest('[data-checklist-card] [data-shared-editable-card-cancel]'); if (checklistCancel) { const checklistCard = checklistCancel.closest('[data-checklist-card]'); setChecklistVisibility(checklistCard, true); setChecklistOpenButtonEnabled(checklistCard, true); return; } const checkbox = event.target.closest('[data-checklist-edit-checkbox]'); if (checkbox) { event.preventDefault(); setChecklistCheckbox(checkbox, checkbox.getAttribute('aria-checked') !== 'true'); const editCard = checkbox.closest('[data-checklist-card]'); setChecklistSignal(editCard, Array.from(editCard?.querySelectorAll('[data-checklist-edit-item]') || []).filter((item) => !item.hasAttribute('data-checklist-trailing-item')).map((item) => ({ is_completed: item.querySelector('[data-checklist-edit-checkbox]')?.getAttribute('aria-checked') === 'true' }))); return; } const readCheckbox = event.target.closest('[data-checklist-read-checkbox]'); if (readCheckbox) { event.preventDefault(); void persistChecklistReadToggle(readCheckbox); return; } const deleteItem = event.target.closest('[data-checklist-delete-item]'); if (deleteItem) { deleteItem.closest('[data-checklist-edit-item]')?.remove(); ensureChecklistTrailingItem(deleteItem.closest('[data-checklist-form]') || deleteItem.closest('[data-market-checklist-form]')); const deleteCard = deleteItem.closest('[data-checklist-card]'); setChecklistSignal(deleteCard, Array.from(deleteCard?.querySelectorAll('[data-checklist-edit-item]') || []).filter((item) => !item.hasAttribute('data-checklist-trailing-item')).map((item) => ({ is_completed: item.querySelector('[data-checklist-edit-checkbox]')?.getAttribute('aria-checked') === 'true' }))); } });";
     echo "  document.addEventListener('input', (event) => { const input = event.target.closest('[data-market-checklist-form] [data-checklist-label]'); if (!input) { return; } const form = input.closest('[data-market-checklist-form]'); const item = input.closest('[data-checklist-edit-item]'); if (item?.hasAttribute('data-checklist-trailing-item') && input.value.trim() !== '') { item.removeAttribute('data-checklist-trailing-item'); } ensureChecklistTrailingItem(form); const card = input.closest('[data-checklist-card]'); setChecklistSignal(card, Array.from(card?.querySelectorAll('[data-checklist-edit-item]') || []).filter((item) => !item.hasAttribute('data-checklist-trailing-item')).map((item) => ({ is_completed: item.querySelector('[data-checklist-edit-checkbox]')?.getAttribute('aria-checked') === 'true' }))); });";
     echo "  document.addEventListener('submit', async (event) => { const form = event.target.closest('[data-market-checklist-form]'); if (!form) { return; } event.preventDefault(); event.stopImmediatePropagation(); const status = form.querySelector('[data-market-checklist-status]'); const checklistWasVisible = form.closest('[data-checklist-card]')?.classList.contains('market-checklist-card--collapsed') === false; const items = Array.from(form.querySelectorAll('[data-checklist-edit-item]')).filter((item) => !item.hasAttribute('data-checklist-trailing-item')).map((item) => ({ label: item.querySelector('[data-checklist-label]')?.value || '', is_completed: item.querySelector('[data-checklist-edit-checkbox]')?.getAttribute('aria-checked') === 'true' })); if (status) { status.textContent = 'Speichern läuft …'; } try { const response = await fetch('/api/market-occurrence.php', { method: 'POST', credentials: 'same-origin', headers: { 'Content-Type': 'application/json', 'X-CSRF-Token': contentRoot.querySelector('[data-market-csrf-token]')?.dataset.marketCsrfToken || '' }, body: JSON.stringify({ action: 'update_checklist', id: form.dataset.marketChecklistId, items, comment: form.querySelector('[data-checklist-comment]')?.value || '' }) }); const result = await response.json(); if (!response.ok || !result.ok) { throw new Error(result.error || 'Speichern fehlgeschlagen.'); } const trigger = contentRoot.querySelector('[data-market-drawer-open][aria-expanded=\"true\"]'); if (trigger) { await openMarketDrawer(trigger); if (checklistWasVisible) { setChecklistVisibility(getMarketDrawer()?.querySelector('[data-checklist-card]'), true); } } } catch (error) { if (status) { status.textContent = error instanceof Error ? error.message : 'Speichern fehlgeschlagen.'; } } });";
     echo "  const marketDrawerTitle = (payload) => { const marketName = payload.market?.name || 'Marktdurchführung'; const dates = (Array.isArray(payload.occurrence?.days) ? payload.occurrence.days : []).map((day) => marketDate(day.date)).filter(Boolean); return dates.length ? marketName + ', Marktdurchführung ' + dates.join(', ') : marketName; };";