v0.9.16: ruff baseline cleanup (routes.py, test_wfigs.py)

Mechanical lint fixes only — ruff 31 -> 0 across the two files.

- E402 module-import-not-at-top: 15 -> 0 (relocated module-level
  `logger = logging.getLogger(...)` from mid-import to below the import
  block in routes.py; imports now contiguous at top of file)
- F811 redefined-while-unused: 10 -> 0 (removed 10 redundant function-local
  `from central.gui.csrf import reuse_or_generate_pre_auth_csrf` re-imports;
  the module-level import at line 26 is now load-bearing)
- F401 unused-import: 4 -> 0 (routes.py: fastapi.Depends, and
  central.gui.csrf.reuse_or_generate_pre_auth_csrf resolved by the F811 fix;
  test_wfigs.py: sqlite3, central.config_models.RegionConfig)
- E702 multiple-statements-on-one-line-semicolon: 2 -> 0 (split the two
  semicolon-joined statements in _fused_bbox, indentation preserved)

Deliberate function-local wizard imports (circular-import workaround) left
untouched. pytest: 890 passed / 1 skipped, unchanged across 3 runs.

no behavior change; ruff mechanical fixes only.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/central/gui/routes.py

@@ -16,10 +16,7 @@ from central.config_store import ConfigStore
 from central.tomtom_flow_parse import decode_flow_tile
 from central.gui.nats import get_js
 
-logger = logging.getLogger("central.gui.routes")
+from fastapi import APIRouter, Form, Request
-
-
-from fastapi import APIRouter, Depends, Form, Request
 from fastapi.responses import HTMLResponse, JSONResponse, RedirectResponse, Response
 from central.bootstrap_config import get_settings
 from central.gui.csrf import (
@@ -65,6 +62,9 @@ from central.adapter_discovery import discover_adapters
 from central.streams import STREAMS as STREAM_REGISTRY
 from pydantic import ValidationError
 
+logger = logging.getLogger("central.gui.routes")
+
+
 @cache
 def _adapter_classes() -> dict:
     """Cached adapter class discovery.
@@ -308,7 +308,6 @@ async def dashboard_polls(request: Request) -> HTMLResponse:
 async def setup_operator_form(request: Request) -> HTMLResponse:
     """Render the setup operator form (step 1)."""
     from central.gui.wizard import get_wizard_state
-    from central.gui.csrf import reuse_or_generate_pre_auth_csrf
 
     templates = _get_templates()
     settings = get_settings()
@@ -346,7 +345,6 @@ async def setup_operator_submit(
 ) -> Response:
     """Process the setup operator form (step 1)."""
     from central.gui.wizard import get_wizard_state, set_wizard_cookie, WizardState
-    from central.gui.csrf import reuse_or_generate_pre_auth_csrf
 
     templates = _get_templates()
     settings = get_settings()
@@ -401,7 +399,6 @@ async def setup_operator_submit(
 async def setup_system_form(request: Request) -> HTMLResponse:
     """Render the system settings form (step 2)."""
     from central.gui.wizard import get_wizard_state
-    from central.gui.csrf import reuse_or_generate_pre_auth_csrf
 
     settings = get_settings()
 
@@ -447,7 +444,6 @@ async def setup_system_form(request: Request) -> HTMLResponse:
 async def setup_system_submit(request: Request) -> Response:
     """Process the system settings form (step 2)."""
     from central.gui.wizard import get_wizard_state, set_wizard_cookie
-    from central.gui.csrf import reuse_or_generate_pre_auth_csrf
 
     templates = _get_templates()
     settings = get_settings()
@@ -514,7 +510,6 @@ async def setup_system_submit(request: Request) -> Response:
 async def setup_keys_form(request: Request) -> HTMLResponse:
     """Render the API keys form (step 3)."""
     from central.gui.wizard import get_wizard_state
-    from central.gui.csrf import reuse_or_generate_pre_auth_csrf
 
     settings = get_settings()
 
@@ -549,7 +544,6 @@ async def setup_keys_form(request: Request) -> HTMLResponse:
 async def setup_keys_submit(request: Request) -> Response:
     """Process the API keys form (step 3)."""
     from central.gui.wizard import get_wizard_state, set_wizard_cookie
-    from central.gui.csrf import reuse_or_generate_pre_auth_csrf
     from central.crypto import encrypt
 
     templates = _get_templates()
@@ -647,7 +641,6 @@ async def setup_keys_submit(request: Request) -> Response:
 async def setup_adapters_form(request: Request) -> HTMLResponse:
     """Render the adapters configuration form (step 4)."""
     from central.gui.wizard import get_wizard_state
-    from central.gui.csrf import reuse_or_generate_pre_auth_csrf
 
     settings = get_settings()
 
@@ -765,7 +758,6 @@ async def setup_adapters_form(request: Request) -> HTMLResponse:
 async def setup_adapters_submit(request: Request) -> Response:
     """Process the adapters configuration form (step 4)."""
     from central.gui.wizard import get_wizard_state, set_wizard_cookie
-    from central.gui.csrf import reuse_or_generate_pre_auth_csrf
 
     templates = _get_templates()
     pool = get_pool()
@@ -985,7 +977,6 @@ async def setup_adapters_submit(request: Request) -> Response:
 async def setup_finish_form(request: Request) -> HTMLResponse:
     """Render the finish setup page (step 5)."""
     from central.gui.wizard import get_wizard_state
-    from central.gui.csrf import reuse_or_generate_pre_auth_csrf
 
     settings = get_settings()
 
@@ -1038,7 +1029,6 @@ async def setup_finish_form(request: Request) -> HTMLResponse:
 async def setup_finish_submit(request: Request) -> Response:
     """Complete the setup wizard - atomic commit of all wizard state."""
     from central.gui.wizard import get_wizard_state, clear_wizard_cookie
-    from central.gui.csrf import reuse_or_generate_pre_auth_csrf
     from asyncpg.exceptions import UniqueViolationError
 
     templates = _get_templates()
@@ -3471,8 +3461,10 @@ def _fused_bbox(params: dict) -> tuple[float, float, float, float] | None:
     """Parse optional north/south/east/west into (west, south, east, north), or
     None if absent/degenerate/out-of-range (mirrors _parse_events_params)."""
     try:
-        n = float(params["north"]); so = float(params["south"])
+        n = float(params["north"])
-        e = float(params["east"]); w = float(params["west"])
+        so = float(params["south"])
+        e = float(params["east"])
+        w = float(params["west"])
     except (KeyError, TypeError, ValueError):
         return None
     if -90 <= so < n <= 90 and -180 <= w < e <= 180:

tests/test_wfigs.py

@@ -1,13 +1,12 @@
 """Tests for WFIGS adapters."""
 
-import sqlite3
 from datetime import datetime, timezone
 from pathlib import Path
 from unittest.mock import AsyncMock, MagicMock, patch
 
 import pytest
 
-from central.config_models import AdapterConfig, RegionConfig
+from central.config_models import AdapterConfig
 from central.models import Event, Geo