Align Hermes context window with local 64K model profiles

tests/test_workstation.py

@@ -58,6 +58,22 @@ class PreparationTests(unittest.TestCase):
         self.assertEqual(updated["custom_providers"][1]["extra_body"]["max_tokens"], 2048)
         self.assertEqual(updated["auxiliary"]["compression"]["base_url"], "http://127.0.0.1:8081/v1")
 
+    def test_context_matches_both_main_profiles_and_replaces_stale_window(self):
+        for previous in (None, 256000):
+            with self.subTest(previous=previous):
+                config = {"model": {"context_length": previous},
+                          "compression": {"threshold_tokens": 24000}}
+                prepare.configure_hermes(config)
+                window = config["model"]["context_length"]
+                self.assertEqual(window, 65536)
+                for name in ("routine", "large"):
+                    text = prepare.profile_config(name, [self.root / "weights.gguf"])
+                    self.assertIn(f"--ctx-size {window}", text)
+                self.assertEqual(config["compression"]["threshold_tokens"], 24000)
+                before = json.dumps(config, sort_keys=True)
+                prepare.configure_hermes(config)
+                self.assertEqual(json.dumps(config, sort_keys=True), before)
+
     def test_existing_profiles_preserved_and_explicit_selection_backed_up(self):
         path = self.root / "llama.env"
         path.write_text("custom tuning\n")