feat(simulation): add discussion switching and truncation simulation logic

gui.py

@@ -1168,9 +1168,9 @@ class App:
                 hint="New discussion name",
                 width=-180,
             )
-            dpg.add_button(label="Create", callback=self.cb_disc_create)
+            dpg.add_button(label="Create", tag="btn_disc_create", callback=self.cb_disc_create)
-            dpg.add_button(label="Rename", callback=self.cb_disc_rename)
+            dpg.add_button(label="Rename", tag="btn_disc_rename", callback=self.cb_disc_rename)
-            dpg.add_button(label="Delete", callback=self.cb_disc_delete)
+            dpg.add_button(label="Delete", tag="btn_disc_delete", callback=self.cb_disc_delete)
 
     def _make_remove_file_cb(self, idx: int):
         def cb():
@@ -2068,7 +2068,7 @@ class App:
                     dpg.add_button(label="+All", callback=self.cb_disc_expand_all)
                     dpg.add_text("Keep Pairs:", color=(160, 160, 160))
                     dpg.add_input_int(tag="disc_truncate_pairs", default_value=2, width=80, min_value=1)
-                    dpg.add_button(label="Truncate", callback=self.cb_disc_truncate)
+                    dpg.add_button(label="Truncate", tag="btn_disc_truncate", callback=self.cb_disc_truncate)
                     dpg.add_button(label="Clear All", callback=self.cb_disc_clear)
                     dpg.add_button(label="Save", callback=self.cb_disc_save)
                 
@@ -2139,7 +2139,7 @@ class App:
                         dpg.add_text("Status: idle", tag="ai_status", color=(200, 220, 160))
                         dpg.add_spacer(width=16)
                         dpg.add_button(label="Clear", callback=self.cb_clear_comms)
-                        dpg.add_button(label="Load Log", callback=self.cb_load_prior_log)
+                        dpg.add_button(label="Load Log", tag="btn_load_log", callback=self.cb_load_prior_log)
                         dpg.add_button(label="Exit Prior", tag="exit_prior_btn", callback=self.cb_exit_prior_session, show=False)
                     
                     dpg.add_text("PRIOR SESSION VIEW", tag="prior_session_indicator", color=(255, 100, 100), show=False)

simulation/workflow_sim.py

@@ -16,6 +16,30 @@ class WorkflowSimulator:
         self.client.click("btn_project_save")
         time.sleep(1)
 
+    def create_discussion(self, name):
+        print(f"Creating discussion: {name}")
+        self.client.set_value("disc_new_name_input", name)
+        self.client.click("btn_disc_create")
+        time.sleep(1)
+
+    def switch_discussion(self, name):
+        print(f"Switching to discussion: {name}")
+        self.client.select_list_item("disc_listbox", name)
+        time.sleep(1)
+
+    def load_prior_log(self):
+        print("Loading prior log")
+        self.client.click("btn_load_log")
+        # This usually opens a file dialog which we can't easily automate from here
+        # without more hooks, but we can verify the button click.
+        time.sleep(1)
+
+    def truncate_history(self, pairs):
+        print(f"Truncating history to {pairs} pairs")
+        self.client.set_value("disc_truncate_pairs", pairs)
+        self.client.click("btn_disc_truncate")
+        time.sleep(1)
+
     def run_discussion_turn(self, user_message=None):
         if user_message is None:
             # Generate from AI history

tests/test_workflow_sim.py

@@ -26,3 +26,22 @@ def test_setup_new_project():
     client.click.assert_any_call("btn_project_new")
     client.set_value.assert_any_call("project_git_dir", "/tmp/test_git")
     client.click.assert_any_call("btn_project_save")
+
+def test_discussion_switching():
+    client = MagicMock()
+    sim = WorkflowSimulator(client)
+    
+    sim.create_discussion("NewDisc")
+    client.set_value.assert_called_with("disc_new_name_input", "NewDisc")
+    client.click.assert_called_with("btn_disc_create")
+    
+    sim.switch_discussion("NewDisc")
+    client.select_list_item.assert_called_with("disc_listbox", "NewDisc")
+
+def test_history_truncation():
+    client = MagicMock()
+    sim = WorkflowSimulator(client)
+    
+    sim.truncate_history(3)
+    client.set_value.assert_called_with("disc_truncate_pairs", 3)
+    client.click.assert_called_with("btn_disc_truncate")