fix(auth): resolve bare "openai" slug to "openai-api" provider

hermes_cli/auth.py

@@ -1495,6 +1495,7 @@ def resolve_provider(
         "minimax-portal": "minimax-oauth", "minimax-global": "minimax-oauth", "minimax_oauth": "minimax-oauth",
         "alibaba_coding": "alibaba-coding-plan", "alibaba-coding": "alibaba-coding-plan",
         "alibaba_coding_plan": "alibaba-coding-plan",
+        "openai": "openai-api",
         "claude": "anthropic", "claude-code": "anthropic",
         "github": "copilot", "github-copilot": "copilot",
         "github-models": "copilot", "github-model": "copilot",

hermes_cli/models.py

@@ -1095,6 +1095,7 @@ def group_providers(slugs):
     "minimax-portal": "minimax-oauth",
     "minimax-global": "minimax-oauth",
     "minimax_oauth": "minimax-oauth",
+    "openai": "openai-api",
     "claude": "anthropic",
     "claude-code": "anthropic",
     "deep-seek": "deepseek",

tests/hermes_cli/test_openai_provider_alias.py

@@ -0,0 +1,43 @@
+"""resolve_provider must accept "openai" as an alias for "openai-api".
+
+hermes-agent registers its built-in OpenAI provider as ``openai-api`` in
+``PROVIDER_REGISTRY``.  Consumers (WebUI model picker, config.yaml, CLI
+``--provider`` flag) may reasonably send the bare slug ``openai``.
+Without an alias, ``resolve_provider("openai")`` raises ``AuthError``.
+"""
+
+import pytest
+
+from hermes_cli.auth import resolve_provider, PROVIDER_REGISTRY
+
+
+class TestOpenaiAlias:
+    """The bare slug "openai" must resolve to the "openai-api" registry entry."""
+
+    def test_openai_resolves_to_openai_api(self):
+        assert resolve_provider("openai") == "openai-api"
+
+    def test_case_insensitive(self):
+        assert resolve_provider("OpenAI") == "openai-api"
+        assert resolve_provider("OPENAI") == "openai-api"
+
+    def test_canonical_openai_api_unchanged(self):
+        assert resolve_provider("openai-api") == "openai-api"
+
+    def test_openai_codex_unchanged(self):
+        assert resolve_provider("openai-codex") == "openai-codex"
+
+    def test_openai_api_in_registry(self):
+        assert "openai-api" in PROVIDER_REGISTRY
+
+
+class TestOpenaiModelsAlias:
+    """models.py alias table must also map "openai" -> "openai-api"."""
+
+    def test_models_alias(self):
+        from hermes_cli.models import _PROVIDER_ALIASES
+        assert _PROVIDER_ALIASES.get("openai") == "openai-api"
+
+    def test_models_normalize_provider(self):
+        from hermes_cli.models import normalize_provider
+        assert normalize_provider("openai") == "openai-api"