feat(players): NPC disposition types and launch-with-players session tokens

Add Hostile/Neutral/Friendly ring types with session-only inactive overrides on control, plus launch-with-players flow and live player tokens on the map.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/renderer/editor/EditorApp.module.css

@@ -59,6 +59,68 @@
   gap: 10px;
 }
 
+.splitRun {
+  display: inline-flex;
+  align-items: stretch;
+  height: 34px;
+  border-radius: var(--radius-sm);
+  border: 1px solid var(--accent-border);
+  background: var(--accent-fill-solid);
+  overflow: hidden;
+}
+
+.splitRun:disabled,
+.splitRun[aria-disabled='true'] {
+  opacity: 0.45;
+  pointer-events: none;
+}
+
+.splitRunMain,
+.splitRunChevron {
+  border: 0;
+  background: transparent;
+  color: rgba(255, 255, 255, 0.95);
+  cursor: pointer;
+  font: inherit;
+  font-weight: 600;
+}
+
+.splitRunMain {
+  padding: 0 14px;
+}
+
+.splitRunMain:hover:not(:disabled),
+.splitRunChevron:hover:not(:disabled) {
+  background: color-mix(in srgb, var(--accent-fill-solid) 72%, white);
+}
+
+.splitRunMain:active:not(:disabled),
+.splitRunChevron:active:not(:disabled),
+.splitRunChevronOpen {
+  background: color-mix(in srgb, var(--accent-fill-solid) 78%, black);
+}
+
+.splitRunDivider {
+  width: 1px;
+  align-self: stretch;
+  background: rgba(0, 0, 0, 0.28);
+  flex: 0 0 auto;
+}
+
+.splitRunChevron {
+  width: 32px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  padding: 0;
+}
+
+.splitRunChevronSvg {
+  width: 12px;
+  height: 12px;
+  display: block;
+}
+
 .editorSidebar {
   height: 100%;
   min-height: 0;