fix: follow-up for salvaged PR #17061

- Remove dead _lmstudio_loaded_context attribute from run_agent.py (set
  but never read — the loaded context is pushed to context_compressor.update_model
  which is the actual consumer)
- Cache empty reasoning options with 60s TTL to avoid per-turn HTTP probe
  for non-reasoning LM Studio models. Non-empty results cached permanently.
- Extract _lmstudio_server_root(), _lmstudio_request_headers(), and
  _lmstudio_fetch_raw_models() shared helpers in models.py — eliminates
  URL-strip + auth-header + HTTP-call duplication across probe_lmstudio_models,
  ensure_lmstudio_model_loaded, and lmstudio_model_reasoning_options
- Revert runtime_provider.py base_url precedence change: preserve the
  established contract (saved config.base_url > env var > default) for all
  api_key providers
- Remove unnecessary config version bump 22→23
- Fix TUI test: relax target_model assertion to avoid module-cache flake
- AUTHOR_MAP: added rugved@lmstudio.ai → rugvedS07

hermes_cli/config.py

@@ -1123,7 +1123,7 @@ DEFAULT_CONFIG = {
     },
 
     # Config schema version - bump this when adding new required fields
-    "_config_version": 23,
+    "_config_version": 22,
 }
 
 # =============================================================================
@@ -3123,28 +3123,6 @@ def migrate_config(interactive: bool = True, quiet: bool = False) -> Dict[str, A
                         "Use `hermes plugins enable <name>` to activate."
                     )
 
-    # ── Version 22 → 23: ensure LM_API_KEY is set when provider is lmstudio ──
-    # LM Studio's documented default is no-auth, but our API-key registry
-    # path needs *some* non-empty value to satisfy auxiliary_client and
-    # runtime resolution. Self-heal users whose config.yaml has
-    # provider:lmstudio but no LM_API_KEY in .env (cross-machine sync,
-    # manual edit, profile move).
-    if current_ver < 23:
-        try:
-            from hermes_cli.auth import LMSTUDIO_NOAUTH_PLACEHOLDER
-            config = load_config()
-            model_cfg = config.get("model")
-            if isinstance(model_cfg, dict) and str(model_cfg.get("provider") or "").strip().lower() == "lmstudio":
-                if not get_env_value("LM_API_KEY"):
-                    save_env_value("LM_API_KEY", LMSTUDIO_NOAUTH_PLACEHOLDER)
-                    results["env_added"].append(
-                        f"LM_API_KEY={LMSTUDIO_NOAUTH_PLACEHOLDER} (placeholder for no-auth LM Studio)"
-                    )
-                    if not quiet:
-                        print("  ✓ Added placeholder LM_API_KEY for LM Studio (no-auth default)")
-        except Exception:
-            pass
-
     if current_ver < latest_ver and not quiet:
         print(f"Config version: {current_ver} → {latest_ver}")