[codex] Replace mpv fullscreen toggle with launch mode config (#48)

Co-authored-by: bee <autumn@skerritt.blog>

launcher/types.ts

@@ -1,5 +1,6 @@
 import path from 'node:path';
 import os from 'node:os';
+import type { MpvLaunchMode } from '../src/types/config.js';
 import { resolveDefaultLogFilePath } from '../src/shared/log-files.js';
 export { VIDEO_EXTENSIONS } from '../src/shared/video-extensions.js';
 
@@ -140,6 +141,7 @@ export interface Args {
   jellyfinServer: string;
   jellyfinUsername: string;
   jellyfinPassword: string;
+  launchMode: MpvLaunchMode;
 }
 
 export interface LauncherYoutubeSubgenConfig {
@@ -167,6 +169,10 @@ export interface LauncherJellyfinConfig {
   iconCacheDir?: string;
 }
 
+export interface LauncherMpvConfig {
+  launchMode?: MpvLaunchMode;
+}
+
 export interface PluginRuntimeConfig {
   socketPath: string;
   autoStart: boolean;