chore: ruff auto-fix PLR6201 — tuple → set in membership tests (#23937)

Replace  with  for all literal-tuple
membership tests. Set lookup is O(1) vs O(n) for tuple — consistent
micro-optimization across the codebase.

608 instances fixed via `ruff --fix --unsafe-fixes`, 0 remaining.
133 files, +626/-626 (net zero).

hermes_cli/models.py

@@ -818,7 +818,7 @@ try:
     for _pp in _list_providers_for_canonical():
         if _pp.name in _canonical_slugs:
             continue
-        if _pp.auth_type in ("oauth_device_code", "oauth_external", "external_process", "aws_sdk", "copilot"):
+        if _pp.auth_type in {"oauth_device_code", "oauth_external", "external_process", "aws_sdk", "copilot"}:
             continue  # non-api-key flows need bespoke picker UX; skip auto-inject
         _label = _pp.display_name or _pp.name
         _desc = _pp.description or f"{_label} (direct API)"
@@ -2335,7 +2335,7 @@ def _lmstudio_fetch_raw_models(
         with urllib.request.urlopen(request, timeout=timeout) as resp:
             payload = json.loads(resp.read().decode())
     except urllib.error.HTTPError as exc:
-        if exc.code in (401, 403):
+        if exc.code in {401, 403}:
             from hermes_cli.auth import AuthError
             raise AuthError(
                 f"LM Studio rejected the request with HTTP {exc.code}.",
@@ -3270,7 +3270,7 @@ def validate_requested_model(
 
     # MiniMax providers don't expose a /models endpoint — validate against
     # the static catalog instead, similar to openai-codex.
-    if normalized in ("minimax", "minimax-cn"):
+    if normalized in {"minimax", "minimax-cn"}:
         try:
             catalog_models = provider_model_ids(normalized)
         except Exception: