fix: migrate sibling custom-provider slug sites to custom_provider_slug

find_custom_provider_identity_by_model (runtime_provider.py:895,908) and
acp_adapter/server.py:149 still used the old f"custom:{_normalize_custom_provider_name(...)}"
pattern while the rest of the codebase migrated to custom_provider_slug.
For keyed providers whose display name differs from their config key, the
model-based reverse lookup would return custom:<display-name> instead of
the stable custom:<provider_key> identity every other code path returns.

Co-authored-by: Gille <4317663+helix4u@users.noreply.github.com>

acp_adapter/server.py

@@ -114,6 +114,7 @@ def _named_custom_provider_catalogs() -> list[tuple[str, str, list[tuple[str, st
             load_config,
         )
         from hermes_cli.models import fetch_api_models
+        from hermes_cli.providers import custom_provider_slug
     except ImportError:
         return []
 
@@ -145,8 +146,7 @@ def _named_custom_provider_catalogs() -> list[tuple[str, str, list[tuple[str, st
         base_url = str(entry.get("base_url", "") or "").strip()
         if not name or not base_url:
             continue
-        slug_source = provider_key or name
-        slug = "custom:" + slug_source.strip().lower().replace(" ", "-")
+        slug = custom_provider_slug(name, provider_key)
 
         api_key = str(entry.get("api_key", "") or "").strip()
         if not api_key:

hermes_cli/runtime_provider.py

@@ -892,7 +892,7 @@ def find_custom_provider_identity_by_model(model: str) -> Optional[str]:
             if not isinstance(entry, dict):
                 continue
             if _entry_serves_model(entry):
-                return f"custom:{_normalize_custom_provider_name(str(ep_name))}"
+                return custom_provider_slug(str(ep_name), str(ep_name))
 
     try:
         custom_providers = get_compatible_custom_providers(config)
@@ -905,7 +905,10 @@ def find_custom_provider_identity_by_model(model: str) -> Optional[str]:
         if not isinstance(name, str) or not name.strip():
             continue
         if _entry_serves_model(entry):
-            return f"custom:{_normalize_custom_provider_name(name)}"
+            return custom_provider_slug(
+                name,
+                str(entry.get("provider_key", "") or ""),
+            )
 
     return None