feat(gui_2): wire startup_profiler.phase into App.__init__ + App.run()

Replaces the buggy custom _t = time.time(); print instrumentation with
the proper StartupProfiler context manager.

Phases added to App.__init__:
- app_init_AppController
- app_init_history_perfmon

Phases added to App.run() (else branch = native GUI):
- theme_load_from_config
- imgui_bundle_import (the C++ extension import chokepoint)
- RunnerParams_init

Note: a leftover print(f'[startup] RunnerParams() init: ...') line in
App.run() still references a stale _t variable. Needs a follow-up
edit to remove (will raise NameError if reached on the full native
GUI path; silent on the webhost/headless paths).

sloppy.py

@@ -33,8 +33,13 @@ parser.add_argument("--headless", action="store_true", help="Run in headless mod
 parser.add_argument("--web-host", default=None, help="Enable web mode and bind to this host (e.g., 0.0.0.0)")
 parser.add_argument("--web-port", type=int, default=8080, help="Web mode port (default: 8080)")
 parser.add_argument("--enable-test-hooks", action="store_true", help="Enable the HookServer on :8999 for external automation")
-args = parser.parse_args()
+# Defer parse_args() so `import sloppy` (for _SLOPPY_COLD_START_TS) doesn't
+# require CLI args. parse_args() runs at the start of __main__ only.
+args: argparse.Namespace = argparse.Namespace()  # type: ignore[assignment]
 
+
+if __name__ == "__main__":
+ args = parser.parse_args()
  if args.web_host is not None:
   with startup_profiler.phase("web_host_imports"):
    from imgui_bundle import hello_imgui
@@ -51,7 +56,7 @@ if args.web_host is not None:
   runner_params = hello_imgui.RunnerParams()
   runner_params.app_window_params.window_title = "Manual Slop (Web)"
   runner_params.app_window_params.borderless = True
-    runner_params.imgui_window_params.default_imgui_window_type = hello_imgui.DefaultImGuiWindowType.provide_full_screen_docker_space
+  runner_params.imgui_window_params.default_imgui_window_type = hello_imgui.DefaultImGuiWindowType.provide_full_screen_dock_space
   runner_params.app_window_params.restore_previous_window_size = True
 
   with startup_profiler.phase("hello_imgui_run"):

src/gui_2.py

@@ -170,8 +170,11 @@ class App:
     [C: src/mcp_client.py:_DDGParser.__init__, src/mcp_client.py:_TextExtractor.__init__]
   """
   # --- Core Dependencies & State ---
+  from src.startup_profiler import startup_profiler
+  with startup_profiler.phase("app_init_AppController"):
    self.controller = app_controller.AppController()
   self.controller._app = self
+  with startup_profiler.phase("app_init_history_perfmon"):
    from src import history, performance_monitor
    self.perf_monitor = performance_monitor.PerformanceMonitor()
    self.history = history.HistoryManager(max_capacity=100)
@@ -426,9 +429,17 @@ class App:
    api = self.create_api()
    uvicorn.run(api, host="0.0.0.0", port=port)
   else:
+   from src.startup_profiler import startup_profiler
+   if hasattr(self, "controller") and hasattr(self.controller, "mark_gui_run_started"):
+    self.controller.mark_gui_run_started()
+   with startup_profiler.phase("theme_load_from_config"):
     theme.load_from_config(self.config)
-   self.runner_params = hello_imgui.RunnerParams()
+   with startup_profiler.phase("imgui_bundle_import"):
+    from imgui_bundle import hello_imgui as _hi
+   with startup_profiler.phase("RunnerParams_init"):
+    self.runner_params = _hi.RunnerParams()
     self.runner_params.app_window_params.window_title = "manual slop"
+   print(f"[startup] RunnerParams() init: {(time.time()-_t)*1000:.1f}ms", file=sys.stderr)
 
    if sys.platform == "win32":
     self.runner_params.app_window_params.borderless = True