Add local season/episode matching and on-disk rename (skip-on-conflict, confirm-first)

src/components/RenamePanel.css

@@ -256,6 +256,112 @@
   line-height: 1.5;
 }
 
+.modal-overlay {
+  position: fixed;
+  inset: 0;
+  z-index: 100;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: rgba(3, 10, 13, 0.65);
+  backdrop-filter: blur(2px);
+}
+
+.modal-card {
+  width: min(560px, calc(100vw - 48px));
+  max-height: min(560px, calc(100vh - 64px));
+  display: flex;
+  flex-direction: column;
+  background: var(--card);
+  border: 1px solid var(--surface-deep);
+  border-radius: 14px;
+  padding: 20px 22px;
+  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
+}
+
+.modal-title {
+  margin: 0 0 8px;
+  font-size: 16px;
+  font-weight: 700;
+  color: var(--text);
+}
+
+.modal-subtitle {
+  margin: 0 0 14px;
+  font-size: 12px;
+  line-height: 1.5;
+  color: var(--muted-text);
+}
+
+.modal-plan-list {
+  flex: 1;
+  min-height: 0;
+  overflow-y: auto;
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+  background: var(--surface);
+  border: 1px solid var(--surface-deep);
+  border-radius: 10px;
+  padding: 6px;
+}
+
+.modal-plan-row {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  min-width: 0;
+  padding: 6px 8px;
+  border-radius: 6px;
+  font-size: 12px;
+}
+
+.modal-plan-row:hover {
+  background: rgba(255, 255, 255, 0.03);
+}
+
+.modal-plan-old {
+  flex: 1 1 0;
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  color: var(--muted-text);
+}
+
+.modal-plan-arrow {
+  flex: 0 0 auto;
+  color: var(--aurora-cyan);
+}
+
+.modal-plan-new {
+  flex: 1 1 0;
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  color: var(--text);
+  font-weight: 600;
+}
+
+.modal-note {
+  margin: 10px 0 0;
+  font-size: 11px;
+  color: var(--muted-text);
+}
+
+.modal-actions {
+  margin-top: 16px;
+  display: flex;
+  justify-content: flex-end;
+  gap: 10px;
+}
+
+.modal-actions .action-button {
+  width: auto;
+  padding: 0 18px;
+}
+
 .status-bar {
   position: absolute;
   left: 18px;