style: cargo fmt --all (post-Phase-2/4 cleanup)

Auto-format pass after the tool-call rendering work, footer chip,
mention popup, subagent split, and parse-counter de-flake.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

crates/tui/src/tools/subagent/mod.rs

@@ -973,10 +973,8 @@ pub fn new_shared_subagent_manager(workspace: PathBuf, max_agents: usize) -> Sha
     Arc::new(Mutex::new(manager))
 }
 
-
 // === Tool Implementations ===
 
-
 /// Tool to spawn a background sub-agent.
 pub struct AgentSpawnTool {
     manager: SharedSubAgentManager,
@@ -3570,7 +3568,6 @@ Otherwise return concise sections: SUMMARY, EVIDENCE, CHANGES, RISKS.
 Complete the task and provide your final result.
 ";
 
-
 // === Tests ===
 
 #[cfg(test)]

crates/tui/src/tools/subagent/tests.rs

@@ -154,9 +154,11 @@ fn test_parse_assign_request_requires_update_fields() {
         "agent_id": "agent_1234"
     });
     let err = parse_assign_request(&input).expect_err("missing update fields should fail");
-    assert!(err.to_string().contains(
-        "Provide at least one of objective, role/agent_role, message/input, or items"
-    ));
+    assert!(
+        err.to_string().contains(
+            "Provide at least one of objective, role/agent_role, message/input, or items"
+        )
+    );
 }
 
 #[test]

crates/tui/src/tui/ui.rs

@@ -2621,9 +2621,7 @@ fn render(f: &mut Frame, app: &mut App) {
     let slash_menu_entries = visible_slash_menu_entries(app, SLASH_MENU_LIMIT);
     let mention_menu_entries =
         crate::tui::file_mention::visible_mention_menu_entries(app, MENTION_MENU_LIMIT);
-    if !mention_menu_entries.is_empty()
-        && app.mention_menu_selected >= mention_menu_entries.len()
-    {
+    if !mention_menu_entries.is_empty() && app.mention_menu_selected >= mention_menu_entries.len() {
         app.mention_menu_selected = mention_menu_entries.len().saturating_sub(1);
     }
     let context_usage = context_usage_snapshot(app);

crates/tui/src/tui/ui/tests.rs

@@ -1127,7 +1127,10 @@ fn apply_mention_menu_selection_splices_selected_entry() {
     // workspace setup. Apply it.
     app.mention_menu_selected = 0;
     let applied = apply_mention_menu_selection(&mut app, &entries);
-    assert!(applied, "apply_mention_menu_selection should report success");
+    assert!(
+        applied,
+        "apply_mention_menu_selection should report success"
+    );
     assert!(
         app.input.starts_with("open @"),
         "input should still start with `open @`, got: {input}",

crates/tui/src/tui/widgets/footer.rs

@@ -64,7 +64,10 @@ pub fn footer_agents_chip(running: usize) -> Vec<Span<'static>> {
     } else {
         format!("{running} agents")
     };
-    vec![Span::styled(text, Style::default().fg(palette::DEEPSEEK_SKY))]
+    vec![Span::styled(
+        text,
+        Style::default().fg(palette::DEEPSEEK_SKY),
+    )]
 }
 
 /// A status toast routed to the footer's left segment for a short time.