feat: 更新 buddy 的一些功能

src/commands.ts

@@ -115,8 +115,11 @@ const forkCmd = feature('FORK_SUBAGENT')
       require('./commands/fork/index.js') as typeof import('./commands/fork/index.js')
     ).default
   : null
-// buddy loaded directly (not feature-gated) for this build
-import buddy from './commands/buddy/index.js'
+const buddy = feature('BUDDY')
+  ? (
+      require('./commands/buddy/index.js') as typeof import('./commands/buddy/index.js')
+    ).default
+  : null
 /* eslint-enable @typescript-eslint/no-require-imports */
 import thinkback from './commands/thinkback/index.js'
 import thinkbackPlay from './commands/thinkback-play/index.js'
@@ -316,7 +319,7 @@ const COMMANDS = memoize((): Command[] => [
   vim,
   ...(webCmd ? [webCmd] : []),
   ...(forkCmd ? [forkCmd] : []),
-  buddy,
+  ...(buddy ? [buddy] : []),
   ...(proactive ? [proactive] : []),
   ...(briefCommand ? [briefCommand] : []),
   ...(assistantCommand ? [assistantCommand] : []),