fix(map): make area analysis scale-aware

backend/app/schemas/selection_partitions.py

@@ -0,0 +1,14 @@
+from __future__ import annotations
+
+from uuid import UUID
+
+from pydantic import BaseModel, Field
+
+from .operations import VectorSelectionBBox
+
+
+class VectorPartitionSelectionRequest(BaseModel):
+    dataset_ids: list[UUID] = Field(min_length=1, max_length=16)
+    bbox: VectorSelectionBBox
+    area_id: UUID | None = None
+    limit: int = Field(default=1000, ge=1, le=1000)