++

backend/app/db/store.py

@@ -78,22 +78,24 @@ class SimulationStore:
             await db.execute(f"UPDATE simulations SET {', '.join(sets)} WHERE id = ?", vals)
             await db.commit()
 
-    async def sweep_orphan_running_sims(self) -> int:
-        """Mark any 'running' simulations as 'interrupted' on startup.
-
-        Running simulations live only in the current process — there is no
-        supervisor that resumes them after a restart. If we don't sweep them,
-        their status would stay 'running' forever and the report endpoint
-        would never return a terminal state.
-
-        Returns the number of sims swept.
-        """
-        async with aiosqlite.connect(self.global_db_path) as db:
-            cursor = await db.execute(
-                "UPDATE simulations SET status = 'interrupted' WHERE status = 'running'"
-            )
-            await db.commit()
-            return cursor.rowcount or 0
+    async def sweep_orphan_running_sims(self) -> int:
+        """Mark any in-flight (non-terminal) simulation as 'interrupted' on
+        startup. In-flight simulations live only in the current process —
+        there is no supervisor that resumes them after a restart. If we
+        don't sweep them, their status would stay stuck in
+        `generating_world` / `generating_citizens` / `running` / `paused`
+        forever and the report endpoint would never return a terminal
+        state.
+
+        Returns the number of sims swept.
+        """
+        async with aiosqlite.connect(self.global_db_path) as db:
+            cursor = await db.execute(
+                "UPDATE simulations SET status = 'interrupted' "
+                "WHERE status NOT IN ('completed', 'error', 'cancelled', 'interrupted')"
+            )
+            await db.commit()
+            return cursor.rowcount or 0
 
     async def get_simulation(self, sim_id: str) -> dict | None:
         async with aiosqlite.connect(self.global_db_path) as db: