feat: add node coverage and improve investigation presentation

app/native/wndb/gis/network_views.py

@@ -5,6 +5,35 @@ from typing import Any
 from ..core.database import read, read_all
 
 
+def get_node_geographic_positions(name: str, node_ids: list[str]) -> list[Any]:
+    """Resolve only the selected project's stored node geometries to WGS84."""
+    if not node_ids:
+        return []
+    return read_all(name, """
+        SELECT node_id AS id,
+               ST_X(ST_Transform(geom,4326)) AS longitude,
+               ST_Y(ST_Transform(geom,4326)) AS latitude
+        FROM gis.node_geometries
+        WHERE node_id = ANY(%s) AND geom IS NOT NULL AND NOT ST_IsEmpty(geom)
+        ORDER BY node_id
+    """, (node_ids,))
+
+
+def get_node_coverage_links(name: str, node_ids: list[str]) -> list[Any]:
+    """Read the selected subgraph and initial statuses without changing the model."""
+    if not node_ids:
+        return []
+    return read_all(name, """
+        SELECT l.id, l.start_node_id, l.end_node_id,
+               COALESCE(s.status::text, p.status::text) AS status
+        FROM network.links l
+        LEFT JOIN network.pipes p ON p.link_id = l.id
+        LEFT JOIN network.link_initial_settings s ON s.link_id = l.id
+        WHERE l.start_node_id = ANY(%s) AND l.end_node_id = ANY(%s)
+        ORDER BY l.id
+    """, (node_ids, node_ids))
+
+
 def _node_coord_rows(
     rows: list[Any],
 ) -> dict[str, dict[str, Any]]: