feat(ui): Revert Diagnostics to standalone panel and simplify Log Management

src/gui_2.py

@@ -89,6 +89,7 @@ class App:
   if not hasattr(self.controller, 'PROVIDERS'):
    self.controller.PROVIDERS = PROVIDERS
   self.controller.init_state()
+  self.show_windows.setdefault("Diagnostics", False)
   self.controller.start_services(self)
   # Aliases for controller-owned locks
   self._send_thread_lock = self.controller._send_thread_lock
@@ -511,6 +512,9 @@ class App:
     self._render_log_management()
     if self.perf_profiling_enabled: self.perf_monitor.end_component("_render_log_management")
 
+   if self.show_windows.get("Diagnostics", False):
+    self._render_diagnostics_panel()
+
    self.perf_monitor.end_frame()
    # ---- Modals / Popups
    with self._pending_dialog_lock:
@@ -999,8 +1003,6 @@ class App:
    imgui.end()
    return
 
-  if imgui.begin_tab_bar("log_mgmt_tabs"):
-   if imgui.begin_tab_item("Sessions")[0]:
   if self._log_registry is None:
    self._log_registry = log_registry.LogRegistry(str(paths.get_logs_dir() / "log_registry.toml"))
   else:
@@ -1068,9 +1070,19 @@ class App:
        reason="Manually whitelisted"
       )
    imgui.end_table()
-    imgui.end_tab_item()
 
-   if imgui.begin_tab_item("System Diagnostics")[0]:
+  if self.perf_profiling_enabled: self.perf_monitor.end_component("_render_log_management")
+  imgui.end()
+
+ def _render_diagnostics_panel(self) -> None:
+  if self.perf_profiling_enabled: self.perf_monitor.start_component("_render_diagnostics_panel")
+  exp, opened = imgui.begin("Diagnostics", self.show_windows.get("Diagnostics", False))
+  self.show_windows["Diagnostics"] = bool(opened)
+  if not exp:
+   imgui.end()
+   if self.perf_profiling_enabled: self.perf_monitor.end_component("_render_diagnostics_panel")
+   return
+
   metrics = self.perf_monitor.get_metrics()
   imgui.text("Performance Telemetry")
   imgui.same_line()
@@ -1157,12 +1169,10 @@ class App:
     imgui.text_wrapped(entry.get("message", ""))
    imgui.end_table()
 
-    imgui.end_tab_item()
-   imgui.end_tab_bar()
-
-  if self.perf_profiling_enabled: self.perf_monitor.end_component("_render_log_management")
+  if self.perf_profiling_enabled: self.perf_monitor.end_component("_render_diagnostics_panel")
   imgui.end()
 
+
  def _render_files_panel(self) -> None:
   if self.perf_profiling_enabled: self.perf_monitor.start_component("_render_files_panel")
   imgui.text("Paths")