feat: professionalize control plane and standalone delivery

src/biliup_next/app/static/dashboard.css

@@ -134,6 +134,11 @@ button.compact {
   font-size: 13px;
 }
 
+button.is-busy {
+  opacity: 0.72;
+  cursor: wait;
+}
+
 .content {
   display: grid;
   gap: 16px;
@@ -258,6 +263,79 @@ button.compact {
   line-height: 1.6;
 }
 
+.task-cell-subtitle {
+  margin-top: 4px;
+  color: var(--muted);
+  font-size: 12px;
+}
+
+.bind-form {
+  display: grid;
+  gap: 10px;
+  margin-top: 10px;
+}
+
+.bind-form input {
+  width: 100%;
+}
+
+.detail-link {
+  color: var(--accent-2);
+  text-decoration: none;
+  font-weight: 600;
+}
+
+.detail-link:hover {
+  text-decoration: underline;
+}
+
+.session-panel {
+  display: grid;
+  gap: 16px;
+}
+
+.session-hero {
+  display: flex;
+  justify-content: space-between;
+  gap: 12px;
+  align-items: flex-start;
+}
+
+.session-key {
+  margin-top: 6px;
+  font-size: 20px;
+  font-weight: 700;
+  letter-spacing: -0.02em;
+}
+
+.session-meta-strip,
+.session-actions-grid {
+  display: grid;
+  gap: 12px;
+}
+
+.session-actions-grid {
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+}
+
+.session-task-card {
+  cursor: pointer;
+}
+
+.session-task-card:hover {
+  border-color: var(--line-strong);
+}
+
+.session-link-btn {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  border: 1px solid var(--line);
+  border-radius: 12px;
+  padding: 8px 12px;
+  background: rgba(255,255,255,0.78);
+}
+
 .delivery-grid {
   display: grid;
   grid-template-columns: repeat(2, minmax(0, 1fr));