fix(honcho): allow self-hosted local instances without API key (#3644)

Self-hosted Honcho on localhost doesn't require authentication, but
both the activation gates and the SDK client required an API key.

Combined fix from three contributor PRs:
- Relax all 8 activation gates to accept (api_key OR base_url) as
  valid credentials (#3482 by @cameronbergh)
- Use 'local' placeholder for the SDK client when base_url points to
  localhost/127.0.0.1/::1 (#3570 by @ygd58)

Files changed: run_agent.py (2 gates), cli.py (1 gate),
gateway/run.py (1 gate), honcho_integration/cli.py (2 gates),
hermes_cli/doctor.py (2 gates), honcho_integration/client.py (SDK).

Co-authored-by: cameronbergh <cameronbergh@users.noreply.github.com>
Co-authored-by: ygd58 <ygd58@users.noreply.github.com>
Co-authored-by: devorun <devorun@users.noreply.github.com>

honcho_integration/client.py

@@ -417,9 +417,18 @@ def get_honcho_client(config: HonchoClientConfig | None = None) -> Honcho:
     else:
         logger.info("Initializing Honcho client (host: %s, workspace: %s)", config.host, config.workspace_id)
 
+    # Local Honcho instances don't require an API key, but the SDK
+    # expects a non-empty string.  Use a placeholder for local URLs.
+    _is_local = resolved_base_url and (
+        "localhost" in resolved_base_url
+        or "127.0.0.1" in resolved_base_url
+        or "::1" in resolved_base_url
+    )
+    effective_api_key = config.api_key or ("local" if _is_local else None)
+
     kwargs: dict = {
         "workspace_id": config.workspace_id,
-        "api_key": config.api_key,
+        "api_key": effective_api_key,
         "environment": config.environment,
     }
     if resolved_base_url: