fixup(cadastre): tile_size unified param + register slow marker (#168 PR3)

Blocker #1: rename tile_width/tile_height → tile_size in generate_grid_click_points.
Callers in bulk_harvest.py and test_cadastre_bulk.py used tile_size; def had
tile_width+tile_height → TypeError at runtime.

Blocker #2 (10 failures in test_admin_cadastre.py) was side-effect of #1:
TypeError at import chain (app.main → admin_cadastre → bulk_harvest)
broke FastAPI app load → dependency_overrides AttributeError. Now resolved.

Also register `slow` pytest marker in pyproject.toml to suppress
PytestUnknownMarkWarning.

backend/app/services/cadastre/grid_geometry.py

@@ -57,8 +57,7 @@ def quarter_bbox_3857(db: Session, quarter: str) -> tuple[float, float, float, f
 def generate_grid_click_points(
     bbox: tuple[float, float, float, float],
     grid_size: int = 15,
-    tile_width: int = 512,
-    tile_height: int = 512,
+    tile_size: int = 512,
 ) -> list[tuple[tuple[float, float, float, float], tuple[int, int]]]:
     """Генерировать grid_size × grid_size ячеек для bbox квартала.
 
@@ -69,8 +68,7 @@ def generate_grid_click_points(
     Args:
         bbox: (xmin, ymin, xmax, ymax) в EPSG:3857.
         grid_size: количество ячеек по каждой оси (15 → 225 запросов).
-        tile_width: ширина виртуального WMS тайла в пикселях.
-        tile_height: высота виртуального WMS тайла в пикселях.
+        tile_size: размер виртуального WMS тайла в пикселях (квадратный).
 
     Returns:
         Список (sub_bbox, click_xy) — sub_bbox в EPSG:3857, click_xy в пикселях.
@@ -88,8 +86,8 @@ def generate_grid_click_points(
             cell_xmax = cell_xmin + x_step
             cell_ymax = cell_ymin + y_step
             # Клик в центр ячейки
-            click_x = tile_width // 2
-            click_y = tile_height // 2
+            click_x = tile_size // 2
+            click_y = tile_size // 2
             result.append(
                 (
                     (cell_xmin, cell_ymin, cell_xmax, cell_ymax),

backend/pyproject.toml

@@ -79,3 +79,6 @@ strict = true
 [tool.pytest.ini_options]
 testpaths = ["tests"]
 asyncio_mode = "auto"
+markers = [
+    "slow: marks tests as slow (need real network, deselect with -m 'not slow')",
+]