fix(models): live-first merge + update opencode-zen catalog + uncap aggregator picker

tests/hermes_cli/test_opencode_zen_model_limit.py

@@ -0,0 +1,51 @@
+"""Regression tests for OpenCode Zen model picker limits."""
+
+import os
+from unittest.mock import patch
+
+import hermes_cli.providers as providers_mod
+from hermes_cli.model_switch import list_authenticated_providers
+
+
+def test_opencode_zen_lists_all_models_while_other_providers_remain_capped(monkeypatch):
+    """OpenCode Zen is an aggregator product, so the picker must expose its full catalog."""
+    zen_models = [f"zen-model-{i}" for i in range(57)]
+    deepseek_models = [f"deepseek-model-{i}" for i in range(57)]
+
+    monkeypatch.setattr(
+        "agent.models_dev.PROVIDER_TO_MODELS_DEV",
+        {
+            "opencode-zen": "opencode",
+            "deepseek": "deepseek",
+        },
+    )
+    monkeypatch.setattr(
+        "agent.models_dev.fetch_models_dev",
+        lambda: {"opencode": {}, "deepseek": {}},
+    )
+    monkeypatch.setattr(providers_mod, "HERMES_OVERLAYS", {})
+    monkeypatch.setattr(
+        "hermes_cli.models.cached_provider_model_ids",
+        lambda provider: {
+            "opencode-zen": zen_models,
+            "deepseek": deepseek_models,
+        }.get(provider, []),
+    )
+
+    with patch.dict(
+        os.environ,
+        {
+            "OPENCODE_ZEN_API_KEY": "test-zen-key",
+            "DEEPSEEK_API_KEY": "test-deepseek-key",
+        },
+        clear=False,
+    ):
+        providers = list_authenticated_providers(max_models=50)
+
+    opencode_zen = next(p for p in providers if p["slug"] == "opencode-zen")
+    deepseek = next(p for p in providers if p["slug"] == "deepseek")
+
+    assert opencode_zen["models"] == zen_models
+    assert opencode_zen["total_models"] == len(zen_models)
+    assert deepseek["models"] == deepseek_models[:50]
+    assert deepseek["total_models"] == len(deepseek_models)