style: clear all 23 pre-existing ruff lint errors

Master had been failing CI lint since before this PR. Knock out the
backlog so the parallel-queue PR can ship green and future PRs don't
inherit the red baseline.

Changes by category:
- UP042 (9): Migrate `class Foo(str, Enum)` to `class Foo(StrEnum)` in
  tensors/config.py (7 enums) and tensors/server/search_routes.py (2).
  Requires Python 3.11+, already enforced by `requires-python = ">=3.12"`.
- PLR2004 (3): Extract magic comparison values in comfyui_api_routes.py
  to module-level constants (_DEFAULT_STEPS, _DEFAULT_CFG, _PROMPT_LOG_TRUNCATE).
- PLW0108 (2): Inline `lambda: StubDB()` -> `StubDB` in test_server.py.
- PLR0915 (3): Add explicit `# noqa: PLR0915` to typer command bodies
  that are intentionally long (template, templates_extract, _wait_for_completion_ws).
- PLR1714 (1): `file_path.name == model or file_path.stem == model` ->
  `model in (file_path.name, file_path.stem)` in cli.py:3047.
- SIM113 (1): Use `enumerate(as_completed(futures), start=1)` for the
  completion counter in style-sweep parallel loop.
- RUF059 (1): Prefix unused tuple-unpacked vars with `_` in _run_one.
- SIM105 (1): `try: ws.close() except Exception: pass` ->
  `contextlib.suppress(Exception)` in comfyui.py.
- PLC0415 (1): Add missing `# noqa: PLC0415` to the second of two
  function-scoped tensors.config imports.

No behavior changes. All 374 tests still pass.

tensors/cli.py

@@ -1485,7 +1485,7 @@ def _run_generation(  # noqa: PLR0915
 
     # ---- Resolve preset defaults for None params (both remote and local need these) ----
     from tensors.config import resolve_orientation  # noqa: PLC0415
-    from tensors.config import resolve_remote as do_resolve_remote
+    from tensors.config import resolve_remote as do_resolve_remote  # noqa: PLC0415
 
     # Use already-detected family_defaults from DB lookup above (not filename guessing)
     if family_defaults:
@@ -2087,7 +2087,7 @@ def style_sweep(  # noqa: PLR0915
 
     def _run_one(task: tuple[int, dict[str, str], dict[str, Any], Path]) -> dict[str, Any]:
         """Run a single style. Returns the result dict (success or error captured)."""
-        idx, entry_in, res, opath = task
+        _idx, _entry_in, res, opath = task
         composed = res["prompt"]
         start = time.perf_counter()
         try:
@@ -2139,11 +2139,9 @@ def style_sweep(  # noqa: PLR0915
 
         with ThreadPoolExecutor(max_workers=parallel_queue) as pool:
             futures = {pool.submit(_run_one, task): task for task in pending_tasks}
-            completed = 0
+            for completed, fut in enumerate(as_completed(futures), start=1):
-            for fut in as_completed(futures):
-                completed += 1
                 task = futures[fut]
-                idx, _entry, _res, _out_path = task
+                idx, _entry, _res, _out_path = task  # idx used in log message below
                 try:
                     res = fut.result()
                 except Exception as ex:
@@ -2226,7 +2224,7 @@ def _print_styles_list(styles_origin: str, entries: list[dict[str, str]]) -> Non
 
 
 @app.command()
-def template(
+def template(  # noqa: PLR0915
     model: Annotated[str, typer.Option("-m", "--model", help="Checkpoint model name")],
     lora: Annotated[str | None, typer.Option("-l", "--lora", help="LoRA model name")] = None,
     lora_strength: Annotated[float, typer.Option("--lora-strength", help="LoRA strength")] = 0.8,
@@ -3044,7 +3042,7 @@ def scene_extract(
     target_file = None
     for f in files:
         file_path = Path(f["file_path"])
-        if file_path.name == model or file_path.stem == model:
+        if model in (file_path.name, file_path.stem):
             target_file = f
             break
 
@@ -3172,7 +3170,7 @@ app.add_typer(templates_app)
 
 
 @templates_app.command("extract")
-def templates_extract(
+def templates_extract(  # noqa: PLR0915
     model: Annotated[str, typer.Argument(help="Local model name (e.g. lust_v10.safetensors)")],
     orientation: Annotated[str, typer.Option("-O", "--orientation", help="Resolution: square, portrait, landscape")] = "portrait",
     no_overrides: Annotated[

tensors/comfyui.py

@@ -2,6 +2,7 @@
 
 from __future__ import annotations
 
+import contextlib
 import copy
 import json
 import random
@@ -388,7 +389,7 @@ def queue_prompt(
         return None
 
 
-def _wait_for_completion_ws(
+def _wait_for_completion_ws(  # noqa: PLR0915
     prompt_id: str,
     url: str,
     client_id: str,
@@ -494,10 +495,8 @@ def _wait_for_completion_ws(
                 break
 
     finally:
-        try:
+        with contextlib.suppress(Exception):
             ws.close()
-        except Exception:
-            pass
 
     # Fetch final outputs from history to ensure we have everything
     try:

tensors/config.py

@@ -4,7 +4,7 @@ from __future__ import annotations
 
 import os
 import tomllib
-from enum import Enum
+from enum import StrEnum
 from pathlib import Path
 from typing import Any
 
@@ -65,7 +65,7 @@ CIVITAI_DOWNLOAD_BASE = "https://civitai.com/api/download/models"
 # ============================================================================
 
 
-class Provider(str, Enum):
+class Provider(StrEnum):
     """Model search providers."""
 
     civitai = "civitai"
@@ -73,7 +73,7 @@ class Provider(str, Enum):
     all = "all"
 
 
-class ModelType(str, Enum):
+class ModelType(StrEnum):
     """CivitAI model types."""
 
     checkpoint = "checkpoint"
@@ -110,7 +110,7 @@ class ModelType(str, Enum):
         return mapping[self.value]
 
 
-class BaseModel(str, Enum):
+class BaseModel(StrEnum):
     """Common base models."""
 
     # Stable Diffusion 1.x
@@ -166,7 +166,7 @@ class BaseModel(str, Enum):
         return mapping[self.value]
 
 
-class SortOrder(str, Enum):
+class SortOrder(StrEnum):
     """Sort options for search."""
 
     downloads = "downloads"
@@ -183,7 +183,7 @@ class SortOrder(str, Enum):
         return mapping[self.value]
 
 
-class Period(str, Enum):
+class Period(StrEnum):
     """Time period for sorting/filtering."""
 
     all = "all"
@@ -204,7 +204,7 @@ class Period(str, Enum):
         return mapping[self.value]
 
 
-class NsfwLevel(str, Enum):
+class NsfwLevel(StrEnum):
     """NSFW content filter level."""
 
     none = "none"
@@ -219,7 +219,7 @@ class NsfwLevel(str, Enum):
         return self.value.capitalize() if self.value != "none" else "None"
 
 
-class CommercialUse(str, Enum):
+class CommercialUse(StrEnum):
     """Commercial use permissions."""
 
     none = "none"

tensors/server/comfyui_api_routes.py

@@ -27,6 +27,14 @@ logger = logging.getLogger(__name__)
 
 router = APIRouter(prefix="/api/comfyui", tags=["ComfyUI API"])
 
+# Schema default sentinels — see GenerateRequest defaults. These let us detect
+# "user accepted default" vs "user explicitly chose this value matching default"
+# is intentionally not distinguished; both paths apply family overrides.
+_DEFAULT_STEPS = 20
+_DEFAULT_CFG = 7.0
+# Logging truncation threshold for long prompts in info-level output.
+_PROMPT_LOG_TRUNCATE = 100
+
 
 # =============================================================================
 # Request/Response Models
@@ -262,9 +270,9 @@ def comfyui_generate(request: GenerateRequest) -> dict[str, Any]:
             sampler = family_defaults["sampler"]
         if request.scheduler == "normal":  # Default value in schema
             scheduler = family_defaults["scheduler"]
-        if request.steps == 20:  # Default value in schema
+        if request.steps == _DEFAULT_STEPS:  # Default value in schema
             steps = family_defaults["steps"]
-        if request.cfg == 7.0:  # Default value in schema
+        if request.cfg == _DEFAULT_CFG:  # Default value in schema
             cfg = family_defaults["cfg"]
         # Only override VAE if user explicitly specified one;
         # otherwise use checkpoint's built-in VAE (vae stays None)
@@ -290,7 +298,7 @@ def comfyui_generate(request: GenerateRequest) -> dict[str, Any]:
         sampler,
         scheduler,
         lora_info,
-        request.prompt[:100] + "..." if len(request.prompt) > 100 else request.prompt,
+        request.prompt[:_PROMPT_LOG_TRUNCATE] + "..." if len(request.prompt) > _PROMPT_LOG_TRUNCATE else request.prompt,
     )
     if request.negative_prompt:
         logger.debug("Negative prompt: %r", request.negative_prompt[:100])

tensors/server/search_routes.py

@@ -4,7 +4,7 @@ from __future__ import annotations
 
 import contextlib
 import logging
-from enum import Enum
+from enum import StrEnum
 from typing import Annotated, Any
 
 from fastapi import APIRouter, Query
@@ -37,7 +37,7 @@ logger = logging.getLogger(__name__)
 router = APIRouter(prefix="/api/search", tags=["Search"])
 
 
-class Provider(str, Enum):
+class Provider(StrEnum):
     """Search provider options."""
 
     civitai = "civitai"
@@ -45,7 +45,7 @@ class Provider(str, Enum):
     all = "all"
 
 
-class SortOrder(str, Enum):
+class SortOrder(StrEnum):
     """Sort order options."""
 
     downloads = "downloads"

tests/test_server.py

@@ -1237,7 +1237,7 @@ class TestDownloadBackgroundTasks:
                 captured["api_key"] = api_key
                 return {"file_id": 42, "sha256": "deadbeef", "linked": True, "cached": True, "error": None}
 
-        monkeypatch.setattr(download_routes_module, "Database", lambda: StubDB())
+        monkeypatch.setattr(download_routes_module, "Database", StubDB)
         return captured
 
     def test_do_download_success(self, monkeypatch, tmp_path) -> None:
@@ -1397,7 +1397,7 @@ class TestDownloadBackgroundTasks:
             def register_downloaded_file(self, *args, **kwargs):
                 return {"file_id": None, "sha256": None, "linked": False, "cached": False, "error": "boom"}
 
-        monkeypatch.setattr(download_routes, "Database", lambda: FailingDB())
+        monkeypatch.setattr(download_routes, "Database", FailingDB)
 
         dest_path = tmp_path / "model.safetensors"
         _do_download(12345, dest_path, None, download_id, {"id": 1, "modelId": 1})