refactor(db)!: finalize pooled WNDB v2 migration

tests/unit/test_wndb_endpoint_boundaries.py

@@ -0,0 +1,54 @@
+import ast
+from pathlib import Path
+
+
+def test_wndb_editor_routes_are_synchronous() -> None:
+    """Sync psycopg-backed routes must let FastAPI schedule them in its thread pool."""
+    endpoints = Path(__file__).resolve().parents[2] / "app" / "api" / "v1" / "endpoints"
+    route_roots = [endpoints / "network", endpoints / "components"]
+    async_routes: list[str] = []
+
+    for root in route_roots:
+        for path in root.glob("*.py"):
+            tree = ast.parse(path.read_text(encoding="utf-8"))
+            for node in tree.body:
+                if not isinstance(node, ast.AsyncFunctionDef):
+                    continue
+                is_route = any(
+                    isinstance(decorator, ast.Call)
+                    and isinstance(decorator.func, ast.Attribute)
+                    and isinstance(decorator.func.value, ast.Name)
+                    and decorator.func.value.id == "router"
+                    for decorator in node.decorator_list
+                )
+                if is_route:
+                    async_routes.append(f"{path.name}:{node.lineno}:{node.name}")
+
+    assert async_routes == []
+
+
+def test_simulation_routes_are_synchronous() -> None:
+    """EPANET and synchronous WNDB work must run in FastAPI's thread pool."""
+    path = (
+        Path(__file__).resolve().parents[2]
+        / "app"
+        / "api"
+        / "v1"
+        / "endpoints"
+        / "simulation.py"
+    )
+    tree = ast.parse(path.read_text(encoding="utf-8"))
+    async_routes = [
+        node.name
+        for node in tree.body
+        if isinstance(node, ast.AsyncFunctionDef)
+        and any(
+            isinstance(decorator, ast.Call)
+            and isinstance(decorator.func, ast.Attribute)
+            and isinstance(decorator.func.value, ast.Name)
+            and decorator.func.value.id == "router"
+            for decorator in node.decorator_list
+        )
+    ]
+
+    assert async_routes == []