Start of a sim window

BEdit/AGENTS.md

@@ -114,10 +114,17 @@ Keep the root of `src/bedit` minimal. New UI modules should go into the relevant
 - OpenModelica integration belongs in `core/simulation/openmodelica.py`. Its
   persistent worker and OMC session start lazily on the first queued request.
   Never perform OMPython work directly on the Qt GUI thread. Result and error
-  callbacks run on the worker thread and must use a Qt signal before touching UI.
+  callbacks run on background threads and must use a Qt signal before touching UI.
   One lazy temporary working directory is shared by all requests in the session.
   Explicit application shutdown closes OMC and removes that directory plus the
   current session's OMPython log and port files; `__del__` is only a fallback.
+- Simulation runs start an ephemeral localhost TCP listener before launching the
+  generated model through OMC's `system()` function. OpenModelica's newline-delimited
+  `xmltcp` status and message records are parsed in the core and forwarded through
+  callbacks; the simulation service retains the latest progress for polling.
+- The application owns one reusable `SimulationWindow`. Starting a run clears its
+  progress, log, and future result views. Extend graph presentation through its
+  Designer-owned `resultsLayout` and the `clear_results()`/`load_results()` hooks.
 - The optional OpenModelica executable is persisted as
   `simulation/openModelicaPath`. The GUI passes it into `Simulation`; core must
   not read `QSettings`. An empty path uses OMPython/PATH discovery, while an
@@ -162,6 +169,9 @@ pyside6-uic --from-imports ui/text_definition_editor.ui \
 pyside6-uic --from-imports ui/simulation_settings_dialog.ui \
   -o src/bedit/gui/generated/ui_simulation_settings_dialog.py
 
+pyside6-uic --from-imports ui/simulation_window.ui \
+  -o src/bedit/gui/generated/ui_simulation_window.py
+
 pyside6-uic --from-imports ui/graph_parameters_dialog.ui \
   -o src/bedit/gui/generated/ui_graph_parameters_dialog.py