refactor(db)!: clean up business SQL access

- make realtime replacement and analysis result writes transactional\n- consolidate SCADA repositories and remove process-global project state\n- validate SCADA batches and use indexed GIS-backed business queries\n\nBREAKING CHANGE: remove the public analysis result writer and the pipeline-health network_name query parameter.

tests/unit/test_scheme_management_lifecycle.py

@@ -31,7 +31,7 @@ def test_repeated_analysis_names_create_distinct_run_ids(monkeypatch) -> None:
     assert first != second
     assert cursor.execute.call_count == 2
     assert all(
-        "insert into analysis.runs" in call.args[0]
+        "insert into analysis.runs" in call.args[0].lower()
         for call in cursor.execute.call_args_list
     )
 
@@ -57,6 +57,43 @@ def test_update_analysis_run_targets_execution_id(monkeypatch) -> None:
     )
 
     statement, params = cursor.execute.call_args.args
-    assert "where run_id = %s" in statement
+    assert "where run_id = %s" in statement.lower()
     assert params[-1] == run_id
     assert params[1] == "completed"
+
+
+def test_run_and_business_result_share_one_transaction(monkeypatch) -> None:
+    connection = object()
+    context = MagicMock()
+    context.__enter__.return_value = connection
+    monkeypatch.setattr(
+        scheme_management,
+        "project_transaction",
+        lambda _name: context,
+    )
+    created_ids = []
+    result_ids = []
+    monkeypatch.setattr(
+        scheme_management.AnalysisRepository,
+        "create_run_sync",
+        lambda conn, **kwargs: created_ids.append((conn, kwargs["run_id"])),
+    )
+    monkeypatch.setattr(
+        scheme_management.AnalysisRepository,
+        "insert_result_sync",
+        lambda conn, run_id, **_kwargs: result_ids.append((conn, run_id)),
+    )
+
+    run_id = scheme_management.store_analysis_run_with_result(
+        name="tjwater_v2",
+        scheme_name="leak-run",
+        scheme_type="dma_leak_identification",
+        username="alice",
+        scheme_start_time="2026-08-24T00:00:00Z",
+        scheme_detail={},
+        result_type="leakage_identification",
+        result_payload={"rows": []},
+    )
+
+    assert created_ids == [(connection, run_id)]
+    assert result_ids == [(connection, run_id)]