feat(tui): add dev server readiness tool

crates/tui/src/core/engine/tests.rs

@@ -856,6 +856,10 @@ fn non_yolo_mode_retains_default_defer_policy() {
     assert!(!should_default_defer_tool("run_tests", &always_load));
     assert!(!should_default_defer_tool("agent", &always_load));
     assert!(!should_default_defer_tool("read_file", &always_load));
+    assert!(!should_default_defer_tool(
+        "wait_for_dev_server",
+        &always_load
+    ));
     assert!(!should_default_defer_tool("web_search", &always_load));
     assert!(!should_default_defer_tool("write_file", &always_load));
     assert!(!should_default_defer_tool("task_shell_start", &always_load));

crates/tui/src/core/engine/tool_catalog.rs

@@ -61,6 +61,7 @@ pub(super) const DEFAULT_ACTIVE_NATIVE_TOOLS: &[&str] = &[
     "task_shell_start",
     "task_shell_wait",
     "update_plan",
+    "wait_for_dev_server",
     "web_search",
     "write_file",
 ];