Dashboard: Card-Menü für Sessions und Agents

- Session-Cards: Menü mit 'Chat öffnen' und 'Bearbeiten'
- Agent-Cards: Menü mit 'Bearbeiten'
- Drei-Punkte-Trigger (ellipsis-v) erscheint bei Hover
- Click-outside schließt offene Menüs
- Card overflow auf visible geändert für Dropdown-Anzeige

wwwroot/css/dashboard.css

@@ -21,11 +21,12 @@
 }
 
 .card {
+  position: relative;
   background: var(--f3-bg);
   border: var(--border-width) solid var(--f3-border);
   display: flex;
   flex-direction: column;
-  overflow: hidden;
+  overflow: visible;
   border-radius: var(--border-radius);
 }
 
@@ -42,6 +43,7 @@
   aspect-ratio: 1;
   background: var(--f2-bg);
   overflow: hidden;
+  border-radius: var(--border-radius) var(--border-radius) 0 0;
 }
 
 .card-image img {
@@ -99,6 +101,66 @@
   padding: var(--button-padding);
 }
 
+/* Card Menu */
+
+.card-menu {
+  position: absolute;
+  top: var(--badge-spacing);
+  right: var(--badge-spacing);
+  z-index: 10;
+}
+
+.card-menu-trigger {
+  opacity: 0;
+  transition: opacity .15s;
+  padding: .15em .45em;
+  font-size: var(--font-size);
+  background: var(--f3-bg);
+  border: var(--border-width) solid var(--f3-border);
+  border-radius: var(--border-radius);
+}
+
+.card:hover .card-menu-trigger {
+  opacity: var(--semi-transparent);
+}
+
+.card-menu-trigger:hover {
+  opacity: 1 !important;
+}
+
+.card-menu-dropdown {
+  position: absolute;
+  top: 100%;
+  right: 0;
+  margin-top: .3em;
+  background: var(--f3-bg);
+  border: var(--border-width) solid var(--f3-border);
+  border-radius: var(--border-radius);
+  min-width: 10em;
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+  padding-block: calc(var(--badge-spacing) / 2) var(--badge-spacing);
+}
+
+.card-menu-dropdown[hidden] {
+  display: none;
+}
+
+.card-menu-item {
+  border: none;
+  border-radius: unset;
+  text-align: left;
+  padding: var(--menu-item-padding);
+  background: none;
+  white-space: nowrap;
+}
+
+.card-menu-item:not(:disabled):hover {
+  background: var(--f2-bg);
+  border: none;
+}
+
 .card-meta {
   display: flex;
   flex-direction: column;