fix(cli): resolve subagent grouping and UI state persistence (#22252)

packages/cli/src/ui/components/messages/__snapshots__/SubagentGroupDisplay.test.tsx.snap

@@ -0,0 +1,9 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`<SubagentGroupDisplay /> > renders collapsed view by default with correct agent counts and states 1`] = `
+"╭──────────────────────────────────────────────────────────────────────────────╮
+│ ≡ 2 Agents (1 running, 1 completed)... (ctrl+o to expand)                    │
+│ ! api-monitor · Action Required Verify server is running                     │
+│ ✓ db-manager · 💭 Completed successfully                                     │
+"
+`;

packages/cli/src/ui/components/messages/__snapshots__/SubagentProgressDisplay.test.tsx.snap

@@ -1,7 +1,9 @@
 // Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
 
 exports[`<SubagentProgressDisplay /> > renders "Request cancelled." with the info icon 1`] = `
-"ℹ  Request cancelled.
+"Running subagent TestAgent...
+
+ℹ  Request cancelled.
 "
 `;
 
@@ -11,31 +13,43 @@ exports[`<SubagentProgressDisplay /> > renders cancelled state correctly 1`] = `
 `;
 
 exports[`<SubagentProgressDisplay /> > renders correctly with command fallback 1`] = `
-"⠋  run_shell_command echo hello
+"Running subagent TestAgent...
+
+⠋  run_shell_command echo hello
 "
 `;
 
 exports[`<SubagentProgressDisplay /> > renders correctly with description in args 1`] = `
-"⠋  run_shell_command Say hello
+"Running subagent TestAgent...
+
+⠋  run_shell_command Say hello
 "
 `;
 
 exports[`<SubagentProgressDisplay /> > renders correctly with displayName and description from item 1`] = `
-"⠋  RunShellCommand Executing echo hello
+"Running subagent TestAgent...
+
+⠋  RunShellCommand Executing echo hello
 "
 `;
 
 exports[`<SubagentProgressDisplay /> > renders correctly with file_path 1`] = `
-"✓  write_file /tmp/test.txt
+"Running subagent TestAgent...
+
+✓  write_file /tmp/test.txt
 "
 `;
 
 exports[`<SubagentProgressDisplay /> > renders thought bubbles correctly 1`] = `
-"💭 Thinking about life
+"Running subagent TestAgent...
+
+💭 Thinking about life
 "
 `;
 
 exports[`<SubagentProgressDisplay /> > truncates long args 1`] = `
-"⠋  run_shell_command This is a very long description that should definitely be tr...
+"Running subagent TestAgent...
+
+⠋  run_shell_command This is a very long description that should definitely be tr...
 "
 `;