Add stale banner and required analysis UI

Introduces a visual indicator for stale analysis on the case page and a
new section on the "My Cases" page to highlight cases requiring
analysis. This improves user awareness of data currency and pending
actions.

server/templates/case_page.html

@@ -172,6 +172,15 @@
                 border-radius: 4px;
                 color: #842029;
             }
+            .stale-banner {
+                margin: 1em 0;
+                padding: 0.7em 1em;
+                background: #fff7e6;
+                border: 1px solid #f5a623;
+                border-radius: 4px;
+                color: #8a5a00;
+                font-size: 0.95em;
+            }
             .failure-banner strong {
                 font-size: 1.05em;
             }
@@ -495,6 +504,9 @@
         </div>
 
         {% match document_html %} {% when Some with (html) %}
+        {% if analysis_stale_with_doc %}
+        <div class="stale-banner">Analyse nicht aktuell — neue Aufnahmen seit letztem Lauf.</div>
+        {% endif %}
         <div id="doc-content" class="doc-content">
             {% if can_analyze %}
             <div class="doc-actions-top">

server/templates/my_cases.html

@@ -48,6 +48,11 @@ html.admin-view-off .case-list.has-bulk .case-row { grid-template-columns: 1fr a
 .status-badge.open { background: #4a90e2; }
 .status-badge.done { background: #7ed321; }
 .status-badge.fehler { background: #e24a4a; }
+.status-badge.required { background: #f5a623; }
+
+.required-bar { margin: 1em 0; padding: 0.8em 1em; background: #fff7e6; border: 1px solid #f5a623; border-radius: 4px; display: flex; gap: 0.6em; align-items: center; }
+.required-bar button { font-size: 0.9em; padding: 0.5em 1em; }
+.required-bar .count { font-weight: bold; color: #8a5a00; }
 .case-row .actions { display: flex; gap: 0.4em; align-items: center; }
 .case-row .actions button { font-size: 0.85em; padding: 0.35em 0.8em; }
 .case-row .actions .delete-btn { padding: 0.3em; background: transparent; border: none; color: #888; cursor: pointer; display: inline-flex; align-items: center; line-height: 0; border-radius: 4px; transition: color 0.15s, background 0.15s; }
@@ -101,6 +106,13 @@ try {
 {% if total == 0 %}
 <section><p class="empty">{% if show_closed %}Keine offenen oder geschlossenen Fälle.{% else %}Keine Fälle.{% endif %}</p></section>
 {% else %}
+{% if required_count > 0 %}
+<form class="required-bar" method="post" action="/cases/analyze-required">
+{% call csrf::field(csrf_token) %}
+<span class="count">{{ required_count }} Fälle erfordern Analyse</span>
+<button type="submit">Aktualisieren</button>
+</form>
+{% endif %}
 <form method="post" action="/cases/bulk">
 {% call csrf::field(csrf_token) %}
 <input type="hidden" name="return_to" value="/cases{% if show_closed %}?show_closed=1{% endif %}">
@@ -114,7 +126,7 @@ try {
 {% if is_admin %}<div class="check admin-only"><input type="checkbox" name="case_id" value="{{ case.case_id }}"{% if case.is_closed %} disabled{% endif %}></div>{% endif %}
 <div class="body">
 <div class="line1">
-<a class="case-link" href="/cases/{{ case.case_id }}{% if case.is_closed %}?show_closed=1{% endif %}"><span class="time"><time datetime="{{ case.recorded_at_iso }}">{{ case.time_hms_utc }}</time></span> — {% call ol::render(case.oneliner) %}{% if case.oneliner_is_manual %} <span class="manual-marker" title="manuell bearbeitet" aria-label="manuell bearbeitet">👤</span>{% endif %}{% if case.has_failed_recording %} <span class="status-badge fehler">Fehler</span>{% else if case.has_document %} <span class="status-badge done">ausgewertet</span>{% else if !case.is_closed %} <span class="status-badge open">offen</span>{% endif %}{% if case.analyzing %} <span class="label analyzing">wird analysiert</span>{% endif %}{% if case.is_closed %} <span class="closed-badge">geschlossen{% match case.days_until_purge %}{% when Some with (d) %} — wird in {{ d }} Tagen entfernt{% when None %}{% endmatch %}</span>{% endif %}</a>
+<a class="case-link" href="/cases/{{ case.case_id }}{% if case.is_closed %}?show_closed=1{% endif %}"><span class="time"><time datetime="{{ case.recorded_at_iso }}">{{ case.time_hms_utc }}</time></span> — {% call ol::render(case.oneliner) %}{% if case.oneliner_is_manual %} <span class="manual-marker" title="manuell bearbeitet" aria-label="manuell bearbeitet">👤</span>{% endif %}{% if case.has_failed_recording %} <span class="status-badge fehler">Fehler</span>{% else if case.has_document %} <span class="status-badge done">ausgewertet</span>{% else if !case.is_closed %} <span class="status-badge open">offen</span>{% endif %}{% if case.analysis_required && !case.analyzing && !case.is_closed %} <span class="status-badge required">Analyse erforderlich</span>{% endif %}{% if case.analyzing %} <span class="label analyzing">wird analysiert</span>{% endif %}{% if case.is_closed %} <span class="closed-badge">geschlossen{% match case.days_until_purge %}{% when Some with (d) %} — wird in {{ d }} Tagen entfernt{% when None %}{% endmatch %}</span>{% endif %}</a>
 <a class="recordings-link" href="/cases/{{ case.case_id }}/recordings{% if case.is_closed %}?show_closed=1{% endif %}">{{ case.recordings_count }} Aufnahmen</a>
 </div>
 {% match case.analysis_html %}{% when Some with (html) %}<div class="analysis" data-expand><span class="arrow">▸</span><div class="analysis-content">{{ html|safe }}</div></div>{% when None %}{% endmatch %}