feat(irc): add interactive setup

feat(gateway): refine Platform._missing_ and platform-connected dispatch

Restricts plugin-name acceptance to bundled plugin scan + registry
(no arbitrary string -> enum-pollution), pulls per-platform connectivity
checks into a _PLATFORM_CONNECTED_CHECKERS lambda map with a clean
_is_platform_connected method, and adds tests covering the checker map,
plugin platform interface, and IRC setup wizard.

hermes_cli/auth.py

@@ -255,6 +255,14 @@ PROVIDER_REGISTRY: Dict[str, ProviderConfig] = {
         api_key_env_vars=("GMI_API_KEY",),
         base_url_env_var="GMI_BASE_URL",
     ),
+    "gmi": ProviderConfig(
+        id="gmi",
+        name="GMI Cloud",
+        auth_type="api_key",
+        inference_base_url="https://api.gmi-serving.com/v1",
+        api_key_env_vars=("GMI_API_KEY",),
+        base_url_env_var="GMI_BASE_URL",
+    ),
     "minimax": ProviderConfig(
         id="minimax",
         name="MiniMax",
@@ -414,6 +422,14 @@ PROVIDER_REGISTRY: Dict[str, ProviderConfig] = {
         api_key_env_vars=("AZURE_FOUNDRY_API_KEY",),
         base_url_env_var="AZURE_FOUNDRY_BASE_URL",
     ),
+    "azure-foundry": ProviderConfig(
+        id="azure-foundry",
+        name="Azure Foundry",
+        auth_type="api_key",
+        inference_base_url="",  # User-provided endpoint
+        api_key_env_vars=("AZURE_FOUNDRY_API_KEY",),
+        base_url_env_var="AZURE_FOUNDRY_BASE_URL",
+    ),
 }