…esearch#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).

…esearch#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).

* upstream/main: (1099 commits)
  chore: ruff auto-fix C401, C416, C408, PLR1722 (NousResearch#23940)
  feat(prompt-cache): cross-session 1h prefix cache for Claude on Anthropic / OpenRouter / Nous Portal (NousResearch#23828)
  chore: ruff auto-fix PLR6201 — tuple → set in membership tests (NousResearch#23937)
  chore(release): add AUTHOR_MAP entry for wuli666
  fix(auxiliary): evict async wrappers on poisoned client (follow-up to NousResearch#23482)
  fix(cli,tui): align CJK / wide-char markdown tables (NousResearch#23863)
  chore: ruff auto-fixes — collapsible-else-if, if-stmt-min-max, dict.fromkeys (NousResearch#23926)
  fix(/model): surface Nous Portal models from remote catalog manifest (NousResearch#23912)
  fix(cli): defensive _slash_confirm_state access + AUTHOR_MAP
  fix: use TUI modal for slash confirmations
  rebuild model catalog
  fix(dashboard): validate dist exists when --skip-build is set
  fix(dashboard): fallback to stale dist, retry build, add --skip-build flag
  chore: AUTHOR_MAP entry for VinceZcrikl noreply (NousResearch#23647)
  fix: make web UI build output decoding robust on Windows
  fix(agent): catch ChatGPT-account Codex data-URL rejection so images are stripped instead of cascading to compression (NousResearch#23602)
  revert: roll back /goal checklist + /subgoal feature stack (NousResearch#23813)
  chore: AUTHOR_MAP entries for sudo-hardening salvage contributors
  fix(approval): catch sudo with stdin/askpass/shell privilege flags
  fix(terminal): block sudo -S password guessing when SUDO_PASSWORD is not set
  ...

#27355)

Six days after #23937 (608 fixes) the codebase had accumulated 241 new
PLR6201 violations. Same mechanical `x in (...)` → `x in {...}` fix,
same zero-risk profile: set lookup is O(1) vs O(n) for tuple and the
two are semantically equivalent for hashable scalar membership tests.

All 241 instances fixed via `ruff check --select PLR6201 --fix
--unsafe-fixes`, zero remaining. Every changed value is a hashable
scalar (str/int/None/enum/signal); no risk of unhashable runtime
errors. No behavior change.

Test plan:
- 119 files changed, +244/-244 (net zero) — exactly one-line edits
- `ruff check` clean afterward
- Compile checks pass on the largest touched files (cli.py, run_agent.py,
  gateway/run.py, gateway/platforms/discord.py, model_tools.py)
- Subset broad test run on tests/gateway/ tests/hermes_cli/ tests/agent/
  tests/tools/: 18187 passed, 59 pre-existing failures (verified against
  origin/main with the same shape — identical failure count, identical
  category — all xdist test-order flakes unrelated to this change)

Follows the same template as PR #23937 ([tracker: #23972](#23972)).

…esearch#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).

…esearch#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).

NousResearch#27355)

Six days after NousResearch#23937 (608 fixes) the codebase had accumulated 241 new
PLR6201 violations. Same mechanical `x in (...)` → `x in {...}` fix,
same zero-risk profile: set lookup is O(1) vs O(n) for tuple and the
two are semantically equivalent for hashable scalar membership tests.

All 241 instances fixed via `ruff check --select PLR6201 --fix
--unsafe-fixes`, zero remaining. Every changed value is a hashable
scalar (str/int/None/enum/signal); no risk of unhashable runtime
errors. No behavior change.

Test plan:
- 119 files changed, +244/-244 (net zero) — exactly one-line edits
- `ruff check` clean afterward
- Compile checks pass on the largest touched files (cli.py, run_agent.py,
  gateway/run.py, gateway/platforms/discord.py, model_tools.py)
- Subset broad test run on tests/gateway/ tests/hermes_cli/ tests/agent/
  tests/tools/: 18187 passed, 59 pre-existing failures (verified against
  origin/main with the same shape — identical failure count, identical
  category — all xdist test-order flakes unrelated to this change)

Follows the same template as PR NousResearch#23937 ([tracker: NousResearch#23972](NousResearch#23972)).