fix: restore opencode-go provider config corrupted by secret redaction (#2393)

auth_type was "***" instead of "api_key" and api_key_env_vars was
("OPEN...",) instead of ("OPENCODE_GO_API_KEY",). This was introduced
in 35d948b6 when a secret redaction tool masked these values during
the Kilo Code provider commit. OpenCode Go provider was completely
broken as a result.

hermes_cli/auth.py

@@ -199,9 +199,9 @@ PROVIDER_REGISTRY: Dict[str, ProviderConfig] = {
     "opencode-go": ProviderConfig(
         id="opencode-go",
         name="OpenCode Go",
-        auth_type="***",
+        auth_type="api_key",
         inference_base_url="https://opencode.ai/zen/go/v1",
-        api_key_env_vars=("OPEN...",),
+        api_key_env_vars=("OPENCODE_GO_API_KEY",),
         base_url_env_var="OPENCODE_GO_BASE_URL",
     ),
     "kilocode": ProviderConfig(