Add map area selection extraction

backend/app/api/routes/datasets.py

@@ -24,6 +24,9 @@ from app.schemas import (
     VectorBufferRequest,
     VectorClipRequest,
     VectorIntersectRequest,
+    VectorSelectionBBox,
+    VectorSelectionRequest,
+    VectorSelectionResponse,
 )
 from app.schemas.job import JobCreate
 from app.schemas.dataset import DatasetCreateResponse
@@ -31,6 +34,7 @@ from app.schemas.operations import VectorOperationResult
 from app.services.job_service import JobService
 from app.services.raster_operations_service import RasterOperationsService
 from app.services.vector_operations_service import VectorOperationsService
+from app.services.vector_feature_service import VectorFeatureService
 from app.services.dataset_service import DatasetService
 from app.utils.response import envelope
 
@@ -180,6 +184,27 @@ def vector_stats(
     return envelope(VectorOperationsService.stats(db, dataset_id))
 
 
+@router.post("/datasets/{dataset_id}/vector/select", response_model=dict)
+def select_vector_features(
+    project_id: UUID,
+    dataset_id: UUID,
+    payload: VectorSelectionRequest,
+    db: Session = Depends(get_db),
+):
+    dataset = DatasetService.get_dataset(db, dataset_id)
+    if dataset.project_id != project_id:
+        raise HTTPException(status_code=404, detail="Dataset not found")
+    if dataset.dataset_type not in {"vector", "geojson"}:
+        raise AppError(code="DATASET_NOT_VECTOR", message="Area selection requires a vector dataset", status_code=400)
+    result = VectorFeatureService.select_features_by_bbox(
+        db,
+        dataset_id=dataset_id,
+        bbox=payload.bbox.model_dump(),
+        limit=payload.limit,
+    )
+    return envelope(VectorSelectionResponse(**result).model_dump())
+
+
 @router.post("/datasets/{dataset_id}/vector/clip", status_code=201, response_model=dict)
 def clip_vector_dataset(
     project_id: UUID,