Add governed SPW bathymetry analysis

backend/app/schemas/bathymetry.py

@@ -109,3 +109,43 @@ class BathymetrySourceProbeRead(BaseModel):
     checked_at: datetime
     message: str
     limitation_message: str
+
+
+class BathymetryRasterSelectionRequest(BaseModel):
+    bbox: VectorSelectionBBox
+    area_id: UUID | None = None
+
+
+class BathymetryRasterMetric(BaseModel):
+    metric_key: str
+    metric_label: str
+    metric_value: float
+    metric_unit: str
+    aggregation_method: str
+    is_estimate: bool = False
+
+
+class BathymetryRasterSelectionSummary(BaseModel):
+    metric_label: str
+    metric_value: float
+    metric_unit: str
+    aggregation_method: str
+    primary_metric_key: str
+    metrics: list[BathymetryRasterMetric]
+
+
+class BathymetryRasterSelectionResponse(BaseModel):
+    dataset_id: UUID
+    product_key: str
+    selection_bbox: VectorSelectionBBox
+    selection_area_id: UUID | None = None
+    selected_cell_count: int = Field(ge=1)
+    valid_cell_count: int = Field(ge=1)
+    coverage_ratio: float = Field(ge=0, le=1)
+    resolution_m: float = Field(gt=0)
+    vertical_reference: str
+    survey_period: str
+    summary: BathymetryRasterSelectionSummary
+    unsupported_metrics: list[str]
+    limitation_message: str
+    generated_at: str