feat: add governed hydrology and historical imagery

backend/app/api/routes/datasets.py

@@ -6,10 +6,10 @@ from typing import Any
 from uuid import UUID
 from uuid import UUID as _UUID
 
-from fastapi import APIRouter, Depends, File, Form, HTTPException, Query
+from fastapi import APIRouter, Depends, File, Form, HTTPException, Query, Response
 from fastapi import UploadFile
 from sqlalchemy.orm import Session
-from app.models import Area
+from app.models import Area, Project
 
 from app.core.errors import AppError
 from app.db.session import get_db
@@ -143,6 +143,14 @@ def acquire_bounded_orthophoto(
     return envelope(job)
 
 
+@router.get("/datasets/orthophoto/products", response_model=dict)
+def list_orthophoto_products(project_id: UUID, db: Session = Depends(get_db)):
+    if not db.get(Project, project_id):
+        raise AppError(code="PROJECT_NOT_FOUND", message="Project not found", status_code=404)
+    items = OrthophotoAcquisitionService.list_products()
+    return envelope({"items": items, "total": len(items)})
+
+
 @router.get("/datasets", response_model=dict)
 def list_datasets(
     project_id: UUID,
@@ -426,6 +434,20 @@ def raster_preview_readiness(
     return envelope(RasterOperationsService.preview(db, dataset_id))
 
 
+@router.get("/datasets/{dataset_id}/raster/image")
+def raster_orthophoto_image(
+    project_id: UUID,
+    dataset_id: UUID,
+    db: Session = Depends(get_db),
+):
+    content = OrthophotoAcquisitionService.render_png(db, project_id, dataset_id)
+    return Response(
+        content=content,
+        media_type="image/png",
+        headers={"Cache-Control": "private, max-age=86400"},
+    )
+
+
 @router.get("/datasets/{dataset_id}/raster/stats", response_model=dict)
 def raster_stats(
     project_id: UUID,