feat(npcs): inspect cards, Show overlay, and optional external link

Clicking an NPC tile opens description cards (multi-select accordion); Show puts avatars on screen. Optional URL opens a webview tab. Avatar pan in the editor commits on pointer up.

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

app/main/index.ts

@@ -124,6 +124,11 @@ if (process.platform === 'win32' && app.isPackaged && process.env.DND_DISABLE_GP
   app.disableHardwareAcceleration();
 }
 
+if (process.platform === 'darwin') {
+  app.commandLine.appendSwitch('enable-gpu-rasterization');
+  app.commandLine.appendSwitch('enable-zero-copy');
+}
+
 if (process.platform === 'win32') {
   app.setAppUserModelId('com.ttrpgplayer.app');
 }
@@ -368,9 +373,7 @@ function syncSceneTrapsForProject(project: Project): void {
 
 function emitVideoState(): void {
   const state = videoStore.getState();
-  for (const win of BrowserWindow.getAllWindows()) {
-    win.webContents.send(ipcChannels.video.stateChanged, { state });
-  }
+  sendToAppWindows(ipcChannels.video.stateChanged, { state }, ['control', 'presentation']);
 }
 
 // Периодически чистим истёкшие эффекты (в основном молнии).
@@ -620,7 +623,7 @@ async function main() {
     openNpcsWindow();
     const npcId = req?.npcId ? asNpcId(String(req.npcId)) : null;
     if (npcId) {
-      npcsOverlayStore.dispatch({ kind: 'show', npcId });
+      npcsOverlayStore.dispatch({ kind: 'inspect.show', npcId });
       emitNpcsOverlayState();
     }
     return { ok: true };
@@ -981,10 +984,11 @@ async function main() {
   );
   registerHandler(
     ipcChannels.project.updateNpcFields,
-    async ({ npcId, name, description, groupId, ringColor, disposition, imageOffset, imageScale }) => {
+    async ({ npcId, name, description, externalUrl, groupId, ringColor, disposition, imageOffset, imageScale }) => {
       const project = await projectStore.updateNpcFields(npcId, {
         ...(typeof name === 'string' ? { name } : {}),
         ...(typeof description === 'string' ? { description } : {}),
+        ...(typeof externalUrl === 'string' ? { externalUrl } : {}),
         ...(groupId !== undefined ? { groupId } : {}),
         ...(ringColor !== undefined ? { ringColor } : {}),
         ...(disposition !== undefined ? { disposition } : {}),