fix(ext): !stop 핸들러 SDK cancelCurrentTask() 교체 — rejectAgentStep 미등록 이슈 해결 #task-411

extension/src/command-handler.ts

@@ -158,10 +158,15 @@ function _processCommandFile(filePath: string, ctx: CommandHandlerContext) {
                 console.log(`Gravity Bridge: approve_terminal error: ${e.message}`)
             );
         } else if (text === '!stop') {
-            // Cancel current operation
-            vscode.commands.executeCommand('antigravity.agent.rejectAgentStep')
-                .then(() => console.log('Gravity Bridge: ✅ stop sent'),
-                    () => { });
+            // Cancel current operation — use SDK (rejectAgentStep is NOT a registered VS Code command)
+            if (ctx.sdk) {
+                try {
+                    ctx.sdk.cascade.cancelCurrentTask();
+                    console.log('Gravity Bridge: ✅ stop sent via SDK');
+                } catch (e: any) {
+                    console.log(`Gravity Bridge: stop error: ${e.message}`);
+                }
+            }
         } else if (text.startsWith('!auto')) {
             // Auto-approve mode toggle
             let enabled: boolean;